This is an authentic DAVID YURMAN Sterling Silver Diamond Blue Topaz 16mm Cable Wrap Ring 51 5.75. The ring is crafted of sterling silver and features a faceted 16mm blue topaz stone wrapped with cable motif bands and a single diamond accented band weighing approximately .30 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.