Skip to main content

Cushion Cut Pink Diamond Rings

to
19
102
95
52
49
34

Use search to find more

3
130
94
39
133
30
21
5
5
4

Use search to find more

50
33
5
2
1
1
GIA Certified Fancy Yellow, Pink and White Diamond Ring in Platinum 950 & 18K
GIA Certified Fancy Yellow, Pink and White Diamond Ring in Platinum 950 & 18K

GIA Certified Fancy Yellow, Pink and White Diamond Ring in Platinum 950 & 18K

By Gad & Co.

Located in Miami, FL

GIA Certified Fancy Yellow Cushion Cut Diamond Ring. This exquisite piece is meticulously crafted with a remarkable blend of Platinum 950 and 18K White Gold, ensuring both durability...

Category

2010s North American Art Deco Cocktail Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, 18k Gold, Platinum

GIA Certified, 0.71ct Cushion Pinkish Brown Natural Color Diamond Ring in 18K
GIA Certified, 0.71ct Cushion Pinkish Brown Natural Color Diamond Ring in 18K

GIA Certified, 0.71ct Cushion Pinkish Brown Natural Color Diamond Ring in 18K

Located in Hong Kong, HK

A stunning 0.71 carat pink diamond, mounted on high-quality 18KT gold. The pink diamond is surrounded by a halo of small round brilliant natural pink diamonds, which add depth and br...

Category

21st Century and Contemporary Hong Kong Contemporary Cocktail Rings

Materials

Pink Diamond, Diamond, 18k Gold, Gold

GIA Certified 0.65ct Light Pink-Brown Natural Cushion Shape Diamond Ring 18Kgold
GIA Certified 0.65ct Light Pink-Brown Natural Cushion Shape Diamond Ring 18Kgold

GIA Certified 0.65ct Light Pink-Brown Natural Cushion Shape Diamond Ring 18Kgold

Located in Hong Kong, HK

This stunning piece of jewelry features a GIA-certified 0.65 carat pink diamond, known for its rarity and beauty, set on 18KT gold. The pink diamond is surrounded by a halo of natura...

Category

21st Century and Contemporary Asian Contemporary Cocktail Rings

Materials

Diamond, Pink Diamond, 18k Gold

Classic Cushion-Cut Blue Diamond with Pink & White Diamonds Platinum Ring
Classic Cushion-Cut Blue Diamond with Pink & White Diamonds Platinum Ring

Classic Cushion-Cut Blue Diamond with Pink & White Diamonds Platinum Ring

Located in New York, NY

Stunning, timeless and classy eternity Unique Ring. Decorate yourself in luxury with this Gin & Grace Ring. The 950 Platinum & 18K Gold jewelry boasts with Cushion-cut 1 pcs 2.50 car...

Category

20th Century Chinese Art Deco Engagement Rings

Materials

White Diamond, Pink Diamond, Blue Diamond, 18k Gold, White Gold, Yellow ...

GIA Certified, 1.0ct Cushion Natural Faint Pinkish Brown Diamond Engagement Ring
GIA Certified, 1.0ct Cushion Natural Faint Pinkish Brown Diamond Engagement Ring

GIA Certified, 1.0ct Cushion Natural Faint Pinkish Brown Diamond Engagement Ring

Located in Hong Kong, HK

the GIA Certified 1.00ct Cushion Natural Faint Pinkish Brown Diamond Ring. This exquisite ring is crafted from lustrous 18kt gold, providing a luxurious backdrop for its remarkable c...

Category

21st Century and Contemporary Asian Contemporary Cocktail Rings

Materials

Pink Diamond, 18k Gold

GIA Certified 2.02 Carat Cushion Cut Fancy Greenish Yellow Diamond Ring
GIA Certified 2.02 Carat Cushion Cut Fancy Greenish Yellow Diamond Ring

GIA Certified 2.02 Carat Cushion Cut Fancy Greenish Yellow Diamond Ring

By Gad & Co.

Located in Miami, FL

GIA Certified 2.02 Carat Cushion Cut Fancy Greenish Yellow Diamond Ring. Set with a colorful array of mixed-cut pink and white diamonds. This ring is a glowing piece of top-quality n...

Category

2010s American Modern Engagement Rings

Materials

White Diamond, Yellow Diamond, Pink Diamond, 18k Gold, Rose Gold, White ...

Scarselli Mosaic Cocktail Ring Natural 1 Carat Fancy Yellow Diamond Cushion GIA
Scarselli Mosaic Cocktail Ring Natural 1 Carat Fancy Yellow Diamond Cushion GIA

Scarselli Mosaic Cocktail Ring Natural 1 Carat Fancy Yellow Diamond Cushion GIA

By SCARSELLI

Located in New York, NY

Cocktail Ring with GIA-Certified 1.00 Carat Fancy Yellow Diamond Center Stone Mosaic Style Statement Ring with Fancy Color Diamonds on 18k Yellow Gold Setting. 3.38 carats of fancy c...

Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, Brown Diamond, 18k Gold, Yellow Gold

Issac Nussbaum GIA Certified 2.02 Carat Natural Pink Diamond Ring
Issac Nussbaum GIA Certified 2.02 Carat Natural Pink Diamond Ring

Issac Nussbaum GIA Certified 2.02 Carat Natural Pink Diamond Ring

By Issac Nussbaum

Located in New York, NY

This beautiful natural color pink diamond from ISSAC NUSSBAUM NEW YORK weighs an impressive 2.02 carats and is a rare cushion shape stone with a vs2 clarity fancy brown pink with pi...

Category

2010s American Modern Engagement Rings

Materials

Pink Diamond

Emilio Jewelry Gia Certified Exotic Diamond Vivid Ring
Emilio Jewelry Gia Certified Exotic Diamond Vivid Ring

Emilio Jewelry Gia Certified Exotic Diamond Vivid Ring

By Emilio!

Located in New York, NY

From the Museum Vault At Emilio Jewelry, a dealer located on New York's iconic Fifth Avenue, Featuring a one of a kind diamond band set with 5 ultra rare Gia certified natural fancy ...

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Blue Diamond, Yellow Diamond, Pink Diamond

Beauvince Chocolate Colored Diamond Cocktail Ring '3.89 Ct Diamonds' in Gold
Beauvince Chocolate Colored Diamond Cocktail Ring '3.89 Ct Diamonds' in Gold

Beauvince Chocolate Colored Diamond Cocktail Ring '3.89 Ct Diamonds' in Gold

By Beauvince Jewelry

Located in New York, NY

This statement ring is all the glitz and glam with is chocolate colored diamond center and pink diamond halo highlighted by the classic beauty of white diamonds. Center Diamond Shap...

Category

2010s Contemporary Cocktail Rings

Materials

Brown Diamond, Pink Diamond, White Diamond, Diamond, White Gold, Rose Go...

Emilio Jewelry Gia Certified .70 Carat Pink Diamond Ring
Emilio Jewelry Gia Certified .70 Carat Pink Diamond Ring

Emilio Jewelry Gia Certified .70 Carat Pink Diamond Ring

By Emilio!

Located in New York, NY

From the Vault at Emilio Jewelry Located on New York's iconic 5th Avenue, Featuring a center diamond Gia certified Natural Very light pink diamond with no overtone .70ct and a clarit...

Category

21st Century and Contemporary Engagement Rings

Materials

Pink Diamond

Beauvince Blossoms Diamond Cocktail Ring '3.09 Ct Diamonds' in Gold
Beauvince Blossoms Diamond Cocktail Ring '3.09 Ct Diamonds' in Gold

Beauvince Blossoms Diamond Cocktail Ring '3.09 Ct Diamonds' in Gold

By Beauvince Jewelry

Located in New York, NY

The Blossoms Diamond Cocktail Ring is uniquely floral and dazzling. With a orangey brown diamond center and a pink diamond halo, all surrounded with marquise and pear shape diamond r...

Category

2010s Contemporary Cocktail Rings

Materials

Brown Diamond, Pink Diamond, White Diamond, Diamond, White Gold, Rose Go...

Alexander Beverly Hills 1.05ct Mixed Color Diamond Three Stone with Halo Ring
Alexander Beverly Hills 1.05ct Mixed Color Diamond Three Stone with Halo Ring

Alexander Beverly Hills 1.05ct Mixed Color Diamond Three Stone with Halo Ring

Located in BEVERLY HILLS, CA

Stunning yellow and pink diamond three stone halo ring. 1.05 carats total diamond weight. 3 fancy color cushion diamonds, 0.65 carats. Ranging approximately from Fancy Yellow, Fancy ...

Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, 18k Gold, Rose Gold, Yellow Gold

"Cop Cot" Fancy Colored Diamond Simon Ardem New York Fall Collection
"Cop Cot" Fancy Colored Diamond Simon Ardem New York Fall Collection

"Cop Cot" Fancy Colored Diamond Simon Ardem New York Fall Collection

By Simon Ardem

Located in New York, NY

Oval design Natural Fancy Earth tone diamond pave ring. Center stone is .85ct Orangy-Brown VS2 Cushion cut diamond and graduating Brown, Orange, Yellow Fancy colored VVS-SI1 diamon...

Category

2010s American Cocktail Rings

Materials

Diamond, Pink Diamond, Brown Diamond, 18k Gold

"Turtle Pond" Simon Ardem Central Park Fall Collection
"Turtle Pond" Simon Ardem Central Park Fall Collection

"Turtle Pond" Simon Ardem Central Park Fall Collection

By Simon Ardem

Located in New York, NY

Diamond Ring with cross band of channel set career cut Diamonds, center stone is .85ct Fancy Orange-Brown VS2. Round cut diamond and graduating Natural Fancy Earth tone VVS-SI1 diamo...

Category

2010s American Cocktail Rings

Materials

Diamond, Pink Diamond, Brown Diamond, 18k Gold

Emilio Jewelry Gia Certified 1.83 Carat Fancy Pink Diamond Cushion Ring
Emilio Jewelry Gia Certified 1.83 Carat Fancy Pink Diamond Cushion Ring

Emilio Jewelry Gia Certified 1.83 Carat Fancy Pink Diamond Cushion Ring

By Emilio!

Located in New York, NY

Center: Gia natural fancy pink .55ct 4 marquise .52 additional .76ct diamonds From The Vault at Emilio Jewelry Located on New York's iconic Fifth Avenue, Showcasing a very special a...

Category

21st Century and Contemporary Engagement Rings

Materials

Pink Diamond

1.00 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring
1.00 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

1.00 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

By Hasbani Diamonds

Located in London, GB

A modern classic engagement ring. Handmade in 18 Karat Gold, with 1.00 Carat White Diamond. Set in an open gallery 4 corners mount with a split v-shank. An impressive 1.00 Carat Cer...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

Emilio Jewelry Gia Certified 2.17 Carat Natural Green Pink Yellow Diamond Ring
Emilio Jewelry Gia Certified 2.17 Carat Natural Green Pink Yellow Diamond Ring

Emilio Jewelry Gia Certified 2.17 Carat Natural Green Pink Yellow Diamond Ring

By Emilio!

Located in New York, NY

3 center diamonds totaling 1.67ct featuring a one of a kind Gia certified natural green, pink and yellow diamond. 86 small diamonds total 0.50ct From The Museum Vault at Emilio Je...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Diamond, Yellow Diamond, Pink Diamond, 18k Gold

Emilio Jewelry GIA Certified 1.50 Carat Fancy Pink Diamond Ring
Emilio Jewelry GIA Certified 1.50 Carat Fancy Pink Diamond Ring

Emilio Jewelry GIA Certified 1.50 Carat Fancy Pink Diamond Ring

By Emilio!

Located in New York, NY

Featuring a center diamond Gia Certified Natural Fancy Pink diamond 1.53ct 8 diamond hearts 1.62ct 8 marquise diamonds 0.52ct 130 small diamonds 1.14cts From The Museum Vault at Emi...

Category

21st Century and Contemporary Engagement Rings

Materials

Pink Diamond, 18k Gold

Emilio Jewelry Gia Certified 3.47 Carat Natural Purple Diamond Ring
Emilio Jewelry Gia Certified 3.47 Carat Natural Purple Diamond Ring

Emilio Jewelry Gia Certified 3.47 Carat Natural Purple Diamond Ring

By Emilio!

Located in New York, NY

1 diamond center Gia certified natural fancy purple 1.30ct 12 diamonds 1.96ct 18 diamonds 0.21ct From The Museum Vault at Emilio Jewelry Located on New York's iconic Fifth Avenue, S...

Category

21st Century and Contemporary Engagement Rings

Materials

Pink Diamond

Emilio Jewelry Gia Certified Fancy Green Pink 4.10 Carat Diamond Ring
Emilio Jewelry Gia Certified Fancy Green Pink 4.10 Carat Diamond Ring

Emilio Jewelry Gia Certified Fancy Green Pink 4.10 Carat Diamond Ring

By Emilio!

Located in New York, NY

2 cushion diamonds Gia certified natural fancy green, and fancy pink totaling 1.42cts in the center, 14 diamonds total 2.40ct 24 small diamonds total 0.28ct From The Vault at Emilio...

Category

21st Century and Contemporary Engagement Rings

Materials

Blue Diamond, Pink Diamond, 18k Gold

0.50 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring
0.50 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

0.50 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

By Hasbani Diamonds

Located in London, GB

A modern classic engagement ring. Handmade in 18 Karat Gold, with a 0.50 Carat White Diamond. Set in an open gallery 4 corners mount with a split v-shank. A beautiful Half Carat Cer...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.25 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring
0.25 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

0.25 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

By Hasbani Diamonds

Located in London, GB

A modern classic engagement ring. Handmade in 18 Karat Gold, with a 0.25 Carat White Diamond. Set in an open gallery 4 corners mount with a split v-shank. A very pretty 0.25 Carat C...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.75 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring
0.75 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

0.75 Carat Princess Diamond 18 Karat Gold Solitaire Hasbani Engagement Ring

By Hasbani Diamonds

Located in London, GB

A modern classic engagement ring. Handmade in 18 Karat Gold, with a 0.75 Carat White Diamond. Set in an open gallery 4 corners mount with a split v-shank. An attractive 0.75 Carat C...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

GIA 1.01 Ct Fancy Light Pink Cushion Pave Set 18K Engagement Ring with Halo
GIA 1.01 Ct Fancy Light Pink Cushion Pave Set 18K Engagement Ring with Halo

GIA 1.01 Ct Fancy Light Pink Cushion Pave Set 18K Engagement Ring with Halo

By Sebastian Bernard

Located in Los Angeles, CA

A Square Cushion Cut Natural Fancy Light Pinkish Purple GIA certified center Diamond set in a beautiful handcrafted 18k gold pave set Diamond Split Shank Engagement Ring with double ...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold

Natural Fancy Green & Pink Diamond Ring, 1.54 Ctw. 18K White Gold GIA Certified
Natural Fancy Green & Pink Diamond Ring, 1.54 Ctw. 18K White Gold GIA Certified

Natural Fancy Green & Pink Diamond Ring, 1.54 Ctw. 18K White Gold GIA Certified

Located in Honolulu, HI

Stunning green Diamond ring with pink and white diamond double halo. This magnificent ring features a 1.01 carat cushion shape natural light green Diamond in the center surrounded by...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Pink Diamond, 18k Gold, Rose Gold, White Gold

GIA Certified 1.23 Carats Cushion Cut Pink Diamond Double Halo Engagement Ring
GIA Certified 1.23 Carats Cushion Cut Pink Diamond Double Halo Engagement Ring

GIA Certified 1.23 Carats Cushion Cut Pink Diamond Double Halo Engagement Ring

By Roman Malakov

Located in New York, NY

A beautiful and elegant engagement ring, showcasing a vibrant 1.23 carats cushion cut diamond certified by GIA as Fancy Light Pink color and I1 clarity, set in a four prong 18K rose ...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold, Platinum

Eighteen Karat Solid Gold Engagement Ring with GIA Certified Light Pink Diamond
Eighteen Karat Solid Gold Engagement Ring with GIA Certified Light Pink Diamond

Eighteen Karat Solid Gold Engagement Ring with GIA Certified Light Pink Diamond

By Polya Medvedeva Jewellery

Located in Berlin, DE

This contemporary Buttercup engagement ring is crafted in 18 karat white gold and features a GIA certified 0.6 carat light pink diamond in cushion cut, which is natural and unheated ...

Category

21st Century and Contemporary German Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, Gold, 18k Gold, White Gold

GIA Certified Natural Fancy Green & Pink Diamond Ring
GIA Certified Natural Fancy Green & Pink Diamond Ring

GIA Certified Natural Fancy Green & Pink Diamond Ring

Located in Newport Beach, CA

We are pleased to offer this Rare GIA Certified Natural Fancy Green & Pink Diamond Ring. This stunning ring features a GIA certified 0.80ctw natural fancy grayish green cushion cut d...

Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, Pink Diamond, 18k Gold, Rose Gold, Platinum

Eighteen Karat Solid Gold Ring with GIA Certified Fancy Brownish Pink Diamond
Eighteen Karat Solid Gold Ring with GIA Certified Fancy Brownish Pink Diamond

Eighteen Karat Solid Gold Ring with GIA Certified Fancy Brownish Pink Diamond

By Polya Medvedeva Jewellery

Located in Berlin, DE

This contemporary Buttercup engagement ring features a 0.53-carat fancy brownish-pink diamond in a cushion cut. The diamond is natural and has not been heated or treated, with even c...

Category

21st Century and Contemporary German Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, Gold, 18k Gold, White Gold

GIA Certified Fancy Pink Diamond Ring Set in 18 Karat White Gold
GIA Certified Fancy Pink Diamond Ring Set in 18 Karat White Gold

GIA Certified Fancy Pink Diamond Ring Set in 18 Karat White Gold

Located in Jaipur, IN

A beautiful pink diamond ring with a 0.25 carats GIA Certified Fancy Pink Diamond in the centre and a cluster of smaller white and pink diamonds around and with a line of Pear shape ...

Category

2010s Hong Kong Contemporary Bridal Rings

Materials

Diamond, Pink Diamond, White Gold

GIA Certified 2.16 Carats Cushion Cut Pink Diamond Halo Engagement Ring
GIA Certified 2.16 Carats Cushion Cut Pink Diamond Halo Engagement Ring

GIA Certified 2.16 Carats Cushion Cut Pink Diamond Halo Engagement Ring

By Roman Malakov

Located in New York, NY

A rare engagement ring, showcasing a 2.16 carats cushion cut diamond certified by GIA as Fancy Dark Brownish Pink color and SI2 clarity, set on a four prong setting. Surrounded by a ...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Pink Diamond, Platinum

GIA Certified 0.73 Carat Cushion Cut Pink Diamond Engagement Ring in White Gold
GIA Certified 0.73 Carat Cushion Cut Pink Diamond Engagement Ring in White Gold

GIA Certified 0.73 Carat Cushion Cut Pink Diamond Engagement Ring in White Gold

By Roman Malakov

Located in New York, NY

A unique engagement ring, showcasing a 0.73 carat cushion cut diamond certified by GIA as Fancy Orangy Pink color and VS1 clarity, set on a four prong setting made of 18K yellow gold...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Pink Diamond, Diamond, 18k Gold, White Gold, Yellow Gold

0.94 Carat Platinum Engagement Round Diamond Bespoke Fancy Vine 4 Prong Ring
0.94 Carat Platinum Engagement Round Diamond Bespoke Fancy Vine 4 Prong Ring

0.94 Carat Platinum Engagement Round Diamond Bespoke Fancy Vine 4 Prong Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.94 ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

Platinum Engagement 0.68 Carat Round Diamond Bespoke Twisted Love 4 Prong Ring
Platinum Engagement 0.68 Carat Round Diamond Bespoke Twisted Love 4 Prong Ring

Platinum Engagement 0.68 Carat Round Diamond Bespoke Twisted Love 4 Prong Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.68 ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

Platinum Engagement 0.82 Carat Round Diamond Bespoke Fancy Twist 4 Prong Ring
Platinum Engagement 0.82 Carat Round Diamond Bespoke Fancy Twist 4 Prong Ring

Platinum Engagement 0.82 Carat Round Diamond Bespoke Fancy Twist 4 Prong Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.82 ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

Platinum 0.40 Carat Round Diamond Twisted Love 4 Prong Bespoke Engagement Ring
Platinum 0.40 Carat Round Diamond Twisted Love 4 Prong Bespoke Engagement Ring

Platinum 0.40 Carat Round Diamond Twisted Love 4 Prong Bespoke Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.40 ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.50 Carat Round Diamond Bespoke Twisted Love 4 Prong Platinum Engagement Ring
0.50 Carat Round Diamond Bespoke Twisted Love 4 Prong Platinum Engagement Ring

0.50 Carat Round Diamond Bespoke Twisted Love 4 Prong Platinum Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in high grade Platinum 950 to British Standard, with a total of 0.50 ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.68 Carat Round Side Band Diamond Solitaire 18 Karat Rose Gold Engagement Ring
0.68 Carat Round Side Band Diamond Solitaire 18 Karat Rose Gold Engagement Ring

0.68 Carat Round Side Band Diamond Solitaire 18 Karat Rose Gold Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat Rose Gold, with a total of 0.68 Carat White Diamonds. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.83 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
0.83 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

0.83 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 0.83 Carat White Diamond. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.95 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
0.95 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

0.95 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 0.95 Carat White Diamond. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.70 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
0.70 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

0.70 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 0.70 Carat White Diamond. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.50 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
0.50 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

0.50 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 0.51 Carat White Diamond. Set...

Category

2010s British Modern Engagement Rings

Materials

Diamond, Amethyst, Aquamarine, Citrine, White Diamond, Blue Diamond, Yel...

1.68 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
1.68 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

1.68 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 1.68 Carat White Diamonds. Se...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.40 Carat Round Diamond Twisted Love 18 Karat Rose Gold 4 Prong Engagement Ring
0.40 Carat Round Diamond Twisted Love 18 Karat Rose Gold 4 Prong Engagement Ring

0.40 Carat Round Diamond Twisted Love 18 Karat Rose Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat Rose Gold, with a total of 0.40 Carat White Diamonds. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

1.20 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Engagement Love Ring
1.20 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Engagement Love Ring

1.20 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Engagement Love Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat Rose Gold, with a total of 1.20 Carat White Diamond. Set ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

0.95 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Love Engagement Ring
0.95 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Love Engagement Ring

0.95 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Love Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat Rose Gold, with a total of 0.95 Carat White Diamond. Set ...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

1.45 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
1.45 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

1.45 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 1.45 Carat White Diamonds. Se...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

2.18 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
2.18 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

2.18 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 2.18 Carat White Diamonds. Se...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

1.20 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement RIng
1.20 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement RIng

1.20 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement RIng

By Hasbani Diamonds

Located in London, GB

For a beautifully entwined journey together, this gleaming twisted vine modern classic engagement ring. Handmade in 18 Karat White Gold, with a total of 1.20 Carat White Diamond. Set...

Category

2010s British Modern Engagement Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, White Diamond, Blue Diamond, Yel...

Solid Eighteen Karat White Gold Bridal Ring with Fancy Purple Pink Diamond
Solid Eighteen Karat White Gold Bridal Ring with Fancy Purple Pink Diamond

Solid Eighteen Karat White Gold Bridal Ring with Fancy Purple Pink Diamond

By Polya Medvedeva Jewellery

Located in Berlin, DE

This contemporary Bridal Buttercup ring is a true work of art designed by oil painter Polya Medvedeva. The ring is crafted in 18 karat white gold and features a stunning GIA certifie...

Category

21st Century and Contemporary German Contemporary Engagement Rings

Materials

Pink Diamond, Diamond, Gold, White Gold, 18k Gold

Fancy Light Purple Pink Diamond Eighteen Karat Gold Magnolia Engagement Ring
Fancy Light Purple Pink Diamond Eighteen Karat Gold Magnolia Engagement Ring

Fancy Light Purple Pink Diamond Eighteen Karat Gold Magnolia Engagement Ring

By Polya Medvedeva Jewellery

Located in Berlin, DE

This Magnolia Flower Sculptural Engagement Ring is crafted in 18 karat white gold and features a large GIA certified fancy light purplish pink diamond of excellent quality. The crush...

Category

21st Century and Contemporary German Artist Engagement Rings

Materials

Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, White Gold

Fancy Light Pink Diamond 18 Karat Solid White Gold Magnolia Sculptural Ring
Fancy Light Pink Diamond 18 Karat Solid White Gold Magnolia Sculptural Ring

Fancy Light Pink Diamond 18 Karat Solid White Gold Magnolia Sculptural Ring

By Polya Medvedeva Jewellery

Located in Berlin, DE

This Magnolia Flower Sculptural ring is crafted in 18 karat white gold and features a large certified 0,7 carats fancy light pink diamond of excellent quality. The crushed ice cushio...

Category

21st Century and Contemporary German Artist Engagement Rings

Materials

Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, White Gold

GIA Certified 1.01 Carats Cushion Cut Yellow Diamond Double Halo Engagement Ring
GIA Certified 1.01 Carats Cushion Cut Yellow Diamond Double Halo Engagement Ring

GIA Certified 1.01 Carats Cushion Cut Yellow Diamond Double Halo Engagement Ring

By Roman Malakov

Located in New York, NY

A vibrant engagement ring, featuring a 1.01 carats cushion cut diamond certified by GIA as Fancy Yellow color, set on a four claw prong setting made of 18K yellow gold. Surrounded by...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Yellow Diamond, Pink Diamond, 18k Gold, Rose Gold, Yellow Gold

8.02 Carat Fancy Yellow Diamond Ring
8.02 Carat Fancy Yellow Diamond Ring

8.02 Carat Fancy Yellow Diamond Ring

By Diana M. Jewels

Located in New York, NY

This one of a kind diamond ring, designed by Diana M. Jewels combines three natural colored diamonds, Fancy Pink, Fancy Yellow and White diamonds. The center stone is 5.02 Carats Fa...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, 18k Gold

Roman Malakov 1.66 Carats Cushion Diamond & Pink Diamond Halo Wedding Band Ring
Roman Malakov 1.66 Carats Cushion Diamond & Pink Diamond Halo Wedding Band Ring

Roman Malakov 1.66 Carats Cushion Diamond & Pink Diamond Halo Wedding Band Ring

By Roman Malakov

Located in New York, NY

A beautiful wedding band, featuring four brilliant cushion cut diamonds weighing 1.66 carats total with F color and VS clarity. Each cushion cut diamond is accented with halos of gor...

Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Pink Diamond, 18k Gold, Rose Gold

Emilio Jewelry Gia Certified 2.00 Carat Fancy Pure Pink Diamond
Emilio Jewelry Gia Certified 2.00 Carat Fancy Pure Pink Diamond

Emilio Jewelry Gia Certified 2.00 Carat Fancy Pure Pink Diamond

By Emilio!

Located in New York, NY

From Emilio Jewelry, a well known and respected wholesaler/dealer located in the Iconic Gem Tower/Gia Building in New York's Diamond District. This item has been appraised by the exp...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Pink Diamond

Emilio Jewelry 2.00 Carat Fancy Intense Pink Diamond
Emilio Jewelry 2.00 Carat Fancy Intense Pink Diamond

Emilio Jewelry 2.00 Carat Fancy Intense Pink Diamond

By Emilio!

Located in New York, NY

From Emilio Jewelry, a well known and respected wholesaler/dealer located on New York’s iconic Fifth Avenue, One of the rarest most spectacular Natural pink diamonds. Gia Certified ...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Pink Diamond

Emilio Jewelry Gia Certified 3.20 Carat Light Pink Diamond Ring
Emilio Jewelry Gia Certified 3.20 Carat Light Pink Diamond Ring

Emilio Jewelry Gia Certified 3.20 Carat Light Pink Diamond Ring

By Emilio!

Located in New York, NY

Main stone: 3.21 carat Light Pink, SI2, Cushion From Emilio Jewelry, a well known and respected wholesaler/dealer located on New York’s iconic Fifth Avenue, Perfect ring for someon...

Category

21st Century and Contemporary Cocktail Rings

Materials

Pink Diamond

Emilio Jewelry Gia Certified 7.50 Carat Natural Pink Diamond Ring
Emilio Jewelry Gia Certified 7.50 Carat Natural Pink Diamond Ring

Emilio Jewelry Gia Certified 7.50 Carat Natural Pink Diamond Ring

By Emilio!

Located in New York, NY

From Emilio Jewelry, a well known and respected wholesaler/dealer located on New York’s iconic Fifth Avenue, Sitting in the center of this magnificent investment ring is a natural G...

Category

21st Century and Contemporary Three-Stone Rings

Materials

Pink Diamond

  • 1
Get Updated with New Arrivals
Save "Cushion Cut Pink Diamond Rings", and we’ll notify you when there are new listings in this category.

Cushion Cut Pink Diamond Rings For Sale on 1stDibs

There is a broad range of cushion cut pink diamond rings for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Gold, 18k Gold and Rose Gold. Our collection of these items for sale includes 6 vintage editions and 110 modern creations to choose from as well. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. There are many different pieces in our collection of cushion cut pink diamond rings to choose from, but Modern and Contemporary cushion cut pink diamond rings are of considerable interest. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Emilio!, Antinori Fine Jewels and Beyond Fine Jewelry are consistently popular. Most of our cushion cut pink diamond rings for sale are for women, but there are 36 pieces available to browse for men.

How Much are Cushion Cut Pink Diamond Rings?

Prices for cushion cut pink diamond rings can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $2,015 and can go as high as $795,000, while cushion cut pink diamond rings, on average, fetch $27,800.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in. 

Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings. 

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings. 

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry. 

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.