Item #: 920445 This is an authentic DAVID YURMAN 18K Yellow Gold Diamond 1.7mm Astor Single Row Ring 47 4. The ring is crafted of 18 karat yellow gold and features a narrow band with five diamond stations weighing approximately 0.13 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.