One genuine round brilliant cut heat treated black diamond is four prong set in solid 14k white gold setting. An 18" 14k white gold spring necklace chain is included. Item #: PD4105BLK125 Width: mm Weight: 1 g Metal: 14k White Gold Diamond Cut: Round Diamond Color: Black Diamond Clarity: AAA Diamond Carat: 1.2 Diamond Quantity: 1 Diamond Setting: Prong