This is an authentic DAVID YURMAN Sterling Silver Diamond Blue Topaz 18mm Signature Oval Ring size 52 or 6. This ring is crafted of sterling silver with a faceted blue topaz detailed with two rows of pave diamonds, weighing approximately .36 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.