RING In white gold, set with an old-cut cushion-shaped sapphire weighing 4.71 cts, set with two brilliant-cut diamonds. A diamond and 18k gold ring set with an old cut cushion shaped sapphire weighing 4.71 cts. S.S.E.F. certificate attesting: origin Burma (Myanmar), natural colour, no heat modification. RC : Stone dimensions: 10.21 x 9.46 x 4.87 mm. Total diamond weight: approx. 1.20 ct. TDD: 50; US: 5 1/2 (changeable). Gross weight: 4.6 g (18k - 750).