Item #: 600432 This is an authentic DAVID YURMAN Sterling Silver Diamond Hampton Blue Topaz 11mm Chatelaine Necklace. This stunning necklace is crafted of sterling silver and features an 11mm blue topaz stone held by diamond prongs, 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.