Item #: 1178379 This is an authentic CARTIER 18K Yellow Gold Diamond Juste Un Clou Ring 48 4.5. The ring is crafted of 18 karat yellow gold and features a curved nail motif accented with round brilliant cut diamonds, approximately .13 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.