Item #: 469621 This is an authentic CARTIER 18K Yellow Gold Diamond 6mm Tank Francaise Ring 52 6. This magnificent ring is crafted of 18 karat yellow gold and features a Tank de Cartier style band set with edges and vertical lines of round brilliant cut diamonds with a total approximate carat weight of .80 carats. Enjoy this ring for the iconic style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.