3.12 Carat Natural Black Cushion Diamond GIA

This is a 3.12 carat diamond with a Fancy No Overtone Black color grade, cut in a cushion shape. The stone is natural and untreated, certified by the Gemological Institute of America (GIA). It is offered as a loose stone without a setting. Black diamonds of this size and purity are relatively uncommon in the market, as most black diamonds contain graphite or other inclusions that create the dark coloration.