This is an authentic DAVID YURMAN 18K Yellow Gold Diamond Blue Topaz 7mm Chatelaine Ring size 51 or 5.75. The ring is crafted of 18 karat yellow gold and features a cable style band with faceted blue topaz with diamond accented prongs weighing approximately .03 total carat weight. Follow this item for alerts. David Yurman is a registered trademark of David Yurman. FASHIONPHILE is not affiliated with David Yurman.