Item #: 358777 This is an authentic CARTIER 18K White Gold Tank Francaise Ring in size 52, or 6. This classic ring is crafted of 18 karat white gold band and is from the Tank de Cartier collection. This ring echoes the harmony and structure only from the iconic style of Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.