Item #: 449345 This is an authentic CARTIER 18K Yellow Gold 6.5mm C De Cartier Ring 57 8. This stylish ring has a band of 18 karat yellow gold featuring the double C logo at the sides of each opening. This is an excellent ring with the classic style of Cartier Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.