RAVISHING RING In yellow gold, set on claws with a round old-cut diamond weighing approximately 1 ct, in a closed setting of square emeralds and small diamonds. A diamond, emerald and 18k gold ring set with an old cut diamond weighing approximately 1 ct. RC: TDD: 55; US: 7 1/2 (changeable). Gross weight: 7.2 g (18k - 750).