CASHMERE SAPPHIRE RING In platinum and yellow gold, centred on an octagonal-shaped Kashmir sapphire weighing 2.63 cts, set with two tapered diamonds. A diamond and platinum ring set with an octagonal shaped Kashmir sapphire weighing 2.63 cts. S.S.E.F. and Gübelin certificates attesting: origin Kashmir, natural colour, no heat. RC : Stone dimensions: 9.21 x 7.67 x 3.32 mm. TDD: 53; US: 6 1/2 (changeable). Gross weight: 3.5 g (Pt 950 and 18k - 750).