BLOOMING FLOWER" RING In platinum, set in yellow gold with an oval shaped "Paraïba" tourmaline weighing 1.70 ct surrounded by satin-finished petals embellished with diamonds. A diamond, platinum and 18k gold ring set with an oval shaped "Paraïba" tourmaline weighing 1.70 ct. G.R.A. certificate attesting : Natural "Paraïba" tourmaline. RC : Stone dimensions: 7.86 x 6.98 x 4.29 mm. TDD: 54; US: 7 (changeable). Gross weight: 10.3 g (Pt - 950 and 18k - 750).