TURBAN RING In platinum, set with a beautiful octagonal-cut sapphire weighing 11.35 cts, in a radiant setting of baguette-cut diamonds, the claws punctuated by a drop of three small brilliant-cut diamonds. French work of the 1940s. A diamond and platinum ring set with an octagonal shaped sapphire weighing 11.35 cts. Circa 1940. GRS certificate attesting: origin Sri Lanka (Ceylon), natural colour (natural), no heat modification (no heat). RC : Stone size: 13.83 x 11.04 x 7.50 mm. TDD: 52; US: 6 1/2 (changeable). Gross weight: 14.61 g (Pt - 950).