RING In yellow gold, set with an octagonal shaped emerald weighing approximately 2.80 cts, set with troïda diamonds. A diamond and 18k gold ring set with an octagonal shaped emerald weighing approximately 2,80 cts. C.G.L. certificate attesting: origin Colombia (Colombia), impregnation minor (minor). RC : Hallmark: Sté J.B., a five-pointed star within a horizontal lozenge. Dimensions of the stone: 10.4 x 10.3 x 4.0 mm approx. TDD: 53 - 54; US: 6 1/2 - 7 (changeable). Gross weight: 5.1 g (18k - 750).