Item #: 1628697 This is an authentic CARTIER 18K White Gold Diamond C De Cartier Ring 51 5.75. The ring is crafted of 18 karat white gold and features diamond accented Cartier C motifs at the opening of the band, approximately .20 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.