This is an authentic CARTIER 18K Yellow Gold Small Juste Un Clou Ring 51 5.75. This stunning ring is crafted of 18 karat yellow gold into the shape of a gracefully bent nail. This is a fabulous ring with a distinctive look only from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.