Item #: 692218 This is an authentic CARTIER 18K White Gold Diamond Tank Francaise Band Ring size 51 or 5.75. The ring is crafted of 18 karat white gold and features a Tank de Cartier motif band set with round brilliant cut diamonds, approximately .24 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.