this ring which was one of the first creations designed by Jean Cocteau for Louis Cartier. It's the famous TRINITY, one of the "Must" pieces by Cartier. Now rare, the "must" signature is located on the exterior of the yellow gold band. Metal: 18 kt yellow, white and pink gold - gold 750 Weight: 6.2 g Size: 46. (This ring is unisex) Width of one band: 3.5 mm Hallmark：750/46/P6170B/Each band is engraved Eagle and maker's mark Sent in its original Cartier ring case. The Buyer pays import duties and taxes. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. The item will be safely packed and rapidly sent by EMS. Registered shipping with tracking.