Item #: 1664165 This is an authentic CARTIER 18K Pink Yellow White Gold Diamond Trinity Knot Charm Ring 47 4 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 .05 total carat weight. Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.