This is an authentic DAVID YURMAN Sterling Silver Black Diamond 8mm Curb Chain Ring 61 9.5. The ring is crafted of sterling silver and features a structured curb chain motif band pave-set with black diamonds, approximately .67 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.