Item #: 1038260 This is an authentic CARTIER 18K White Gold Diamond Tank Francaise Band Ring 49 5. The ring is crafted of 18 karat white gold and features a Tank de Cartier motif band set with round brilliant cut diamonds, approximately .20 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.