This is an authentic DAVID YURMAN 18K Yellow Gold Diamond Chrysoprase 7mm Chatelaine Ring 51 5.75. The ring is crafte dof 18 karat yellow gold and features a polish chrysoprase center and small diamond accents, approximately .03 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.