Black Diamond Ring

Size 15 ring made of rhodium-plated 925 silver with a spectacular 5mm diameter black diamond specimen set with prongs on a simple structure, which allows the beauty of this unique stone to stand out.

Black diamond, also known as carbonado, is the hardest natural variety of diamond, a polycrystalline agglomerate of amorphous carbon, graphite, and diamond crystals. Black diamonds reach a maximum of 10 on the Mohs scale and cannot be altered by anything except other diamonds. They are opaque, porous, and produce no light refraction or brilliance.

Natural black diamonds are generally opaque but have metallic reflections, although different qualities exist. Natural black diamonds are also typically difficult to polish and cut.