RING In white gold, set with an octagonal emerald weighing 3.89 cts, with small diamonds. A diamond and 18k gold ring set with an octagonal cut emerald weighing 3,89 cts. Copy of A.I.G. certificate stating: origin Zambia, colour "Vivid Green", impregnated with minor oil. RC : Dimensions of stone: 9.01 x 8.86 x 6.55 mm. TDD: 55; US: 7 1/2 (changeable). Gross weight: 3.8 g (18k - 750).