This is an authentic DAVID YURMAN 18K Yellow Gold Diamond Black Onyx 15mm Cushion On Point Ring 52 6. The ring is crafted of 18 karat yellow gold, and features a double cable style band holding a faceted cushion cut black onyx stone accented with quatrefoil shaped prongs set with pave diamonds, approximately .12 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.