Item #: 571640 This is an authentic DAVID YURMAN Sterling Silver Diamond Blue Topaz 10mm Noblesse Ring 52 6. The ring is crafted of sterling silver and features a cable style band with a single cushion cut blue topaz stone accented with diamonds, approximately .21 total carat weight. This is a classic ring with the signature style of David Yurman! Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.