Cartier 18k Yellow Gold Diamond Heart Eternity Band Ring Size 7.25 This ring comes with service paper from a Cartier store in NYC. Metal: 18k Yellow Gold Size: European 55, US 7 1/4 Width: 7mm Weight: 4.6 grams Stones: 45 round brilliant cut diamonds VS1 clarity, G color total weight approximately 1.20ct Hallmarks: Cartier 750 55 264XXX(serial number omitted) T3355ttad Dimensions reference the ring size and are not specific to the ring itself.