Item #: 1281729 This is an authentic DAVID YURMAN Darkened Sterling Silver Diamond Blue Topaz 20mm Chatelaine Ring 56 7.5. The ring is crafted of darkened sterling silver and features a 20mm faceted blue topaz center and pave-set diamonds weighing approximately .56 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.