RING In white gold, set with a rectangular shaped step-cut emerald weighing 2.18 ct in a shaped surround of round brilliant-cut diamonds, the shoulder highlighted with baguette-cut diamonds. A diamond and 18k gold ring set with a rectangular shaped step cut emerald weighing 2.18 ct. Gem Identification Report certificate attesting: origin Colombia (Colombia), impregnation minor (minor). RC : Stone dimensions: 9.7 x 7.0 x 4.6 mm approx. TDD: 55 - 56; US: 7 1/4 (changeable). Gross weight: 4.6 g (18k - 750).