This is an amazing and very impressive 18ct75% pure gold (or 750 parts pure gold and 250 parts other metals) More gold ring that has been set with a large naturalA natural stone is called such because it has not been subjected to any treatments. More octagonal cut Columbian emeraldOne of the four ‘precious’ stones. An intense, deep green is the most desirable colour for emeralds. Flaws and cloudiness (‘jardin’) are very common in emeralds, so stones are often oiled, irradiated, and dyed to improve their look. Synthetic emeralds have fewer imperfections and are hard to set apart from natural stones. Emeralds belong to the beryl... More that weighs 6.10 caratsThe unit of weight for a diamond or other gemstone and also for a pearl. Abbreviated 'ct', 1 carat is equal to 0.2 grams. In reference to gold, a unit of purity or fineness of gold and gold alloy, expressed as a number out of 24 parts by weight, e.g. '24 carat' signifies pure gold, '18 carat' 18/24th gold in the alloy, et cetera. Also abbreviated as 'c... More. On either side are large cut-cornered triangular step cutA step cut is a style of cutting a gemstone characterised by straight sides with parallel facets. Most often, step cut stones are square or rectangular. More diamonds. It was made circa 2000 and has a French mark and an import mark. This ring comes with a gemmological certificate.