This is an authentic CARTIER 18K Pink Gold Diamond Pink Opal Amulette de Cartier Ring 51 5.75. The ring is crafted of 18 karat pink gold and features a center disc inlaid with pink opal and a single round brilliant cut diamond, approximately .04 carats. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.