CARTIER Cambered band ring in smooth 18K (750°/°°) yellow gold, set with a brilliant-cut diamond calibrating approximately 0.90 ct Signed Cartier Paris and numbered TDD 57 - Gross weight: 12.4 g In a Cartier jewellery box and red suede pouch, we enclose a copy of the purchase invoice dated 1975 and a copy of the Cartier insurance appraisal dated 1999.