Item #: 1137067 This is an authentic CARTIER 18K Pink Yellow White Gold Diamond Trinity Knot Charm Ring 52 6. The ring is crafted of 18 karat yellow gold and features a polished band with a tri-tone knot charm and a single bezel set diamond, approximately .04 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.