EXTENDED RING In yellow gold, set on claws with an oval peridot weighing approximately 13 cts, set with brilliant-cut diamonds. Hallmarked by the master. A diamond and 18k gold ring set with an oval shaped peridot weighing approximately 13 cts. RC : Hallmark: A, a flower (?) , B, within a horizontal lozenge. TDD: 68; US: 12 1/2 (subject to change). Gross weight: 23.0 g (18k - 750).