Item #: 57954 This is an authentic CARTIER 18k White Gold Happy Birthday Band 47 US 4. This exquisite white gold band ring is 18 karat white gold engraved with the iconic CC engraving. This is a marvelous ring, with a distinctive look, only from Cartier! Follow this item for alerts. Cartier is a registered trademark of Cartier. FASHIONPHILE is not affiliated with Cartier.