This is an authentic DAVID YURMAN 18K Yellow Gold Diamond 1.7mm Astor Single Row Ring 50 5.5. The ring is crafted of 18 karat yellow gold and features five diamond stations weighing approximately .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.