RING In white gold, set with a beautiful pear-shaped sapphire weighing 11.81 cts in a shaped surround of brilliant-cut diamonds, the shoulder paved with diamonds. A diamond and 18k gold ring set with a pear-shaped sapphire weighing 11.81 cts. C.G.L. certificate stating: origin Burma (Myanmar), natural colour, no heat modification. RC : Stone dimensions: 13.63 x 12.45 x 7.97 mm. TDD: 57; US: 8 (changeable, internal ring). Gross weight: 17.3 g (18k - 750).