This is an authentic CARTIER 18K Pink Yellow White Gold Classic Les Must De Cartier Trinity Ring 51 5.75. The ring is crafted of interlocking bands of 18 karat pink, yellow, and white gold in the classic trinity motif. This is a beautiful ring with the iconic style of Cartier! PLEASE NOTE: This ring is stamped 54, but has a wearable size of EU 51 or US 5.75. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.