Ring branded of the House Cartier. in 750 thousandths (18 carat) white gold. heart pendant. set with brilliant-cut diamonds of approximately G/VS of approximately 0.03 ct. Ring size: 54. ring width: 0.27 cm. heart dimensions: 0.63 cm x 0.52 cm. branded and numbered: NU5686. total weight: 4.06 g. owl hallmark. excellent condition