This is an authentic David Yurman Sterling Silver Diamond 2mm Zig Zag Stax Ring 56 7.5. The ring is crafted of sterling silver and features a zig zag band with center row of 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.