Item #: 1804434 This is an authentic DAVID YURMAN 18K Yellow Gold Diamond Turquoise 7mm Chatelaine Ring 46 3.75. The ring is crafted of 18 karat yellow gold and features a a 7mm turquoise and approximately .02 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.