EMERALD AND DIAMOND RING The ring is centred on a rectangular emerald set in a claw bezel and surrounded by brilliant-cut diamonds. Set in platinum and 18K white gold. French work. Gross weight: 6.97 g. Finger size: 51. Emerald size: 9.88 x 7 x 4.96 mm Emerald weight: approx. 2.50 to 2.70 carats. Carat Gem Lab report, in their opinion: Colombian origin, minor impregnation noted. An emerald, diamond, platinum and 18K white gold ring. French assay mark. Gross weight : 6,97 gr. Size : 51. Emerald dimensions : 9,88 x 7 x 4,96 mm approx. Emerald weight : 2,50 to 2,70 carats approx. Carat Gem Lab report, in their opinion : origin Colombia, indications of minor clarity enhancement.