Item #: 746116 This is an authentic CARTIER 18K White Gold Diamond 6mm Tank Francaise Band Ring 48 4.5. The ring is crafted of 18 karat white gold and features a Tank de Cartier motif band with pave set round brilliant cut diamonds weighing approximately .12 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.