25.93 ct, Rough shungite specimen

Natural black qurtz morion crystal on feldspar matrix sku802 Size: 67.5 x 37.6 x 31.0 mm Weight: 303 ct

Staurolite cross crystal specimen sku650 Weight: 25.35 cts Size: 22x16x4 mm Kola Peninsula deposit

Rough alexandrite specimen sku740 Size: 12x8x4mm Weight: 5.62 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, Russ...

Rough alexandrite specimen sku739 Size: 10x5x4 mm Weight: 4.56 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, Rus...

This lustrous, large rough black diamond mined in Canada weighs 64.92 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make beautiful co...

This lustrous, huge rough black diamond mined in Canada weighs 251.76 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make beautiful co...

This natural diamond single crystal out of Canada weighs 27.03 carats and has salt and pepper coloration due to natural inclusions in the crystal lattice structure. It displays beaut...

Presenting a once-in-a-lifetime opportunity: This monumental 230.25 carat carbonado diamond is the largest natural black diamond available on the market. Known for their extraordinary rarity and captivating origin, carbonado diamonds are believed by many in the scientific community to have formed in space and arrived on Earth via ancient meteorite impacts – making them not just gemstones, but celestial relics. This uncut, museum-grade carbonado black diamond...