This is an authentic DAVID YURMAN Sterling Silver Diamond Blue Topaz 11mm Chatelaine Pendant Necklace. The necklace is crafted of sterling silver and features an 11mm blue topaz stone in a diamond accented four prong setting, weighing approximately .05 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.