For sale, a stunning, ALL Natural Diamond, Emerald, Ruby and Sapphire 10 Karat Gold Ring. Size: 10.5 Weight: 1.82 Grams Band width narrowest: 1 mm Emerald: 3 Prong set, 100% Natural stone with some inclusions, Oval, measuring 5 mm x 3 mm (0.25 Carat Weight) Ruby: 3 Prong set, 100% Natural stone with some inclusions, Oval, measuring 4 mm x 2 mm (0.15 Carat Weight) Blue Sapphire: 4 Prong set, 100% Natural stone, Round, measuring 3 mm diameter (0.1 Carat Weight) Diamonds: x 2 Stones, Round, 4 Prong set, measuring 1.6 mm diameter (0.02 Carats each stone, 0.04 Carats combined) Hallmarks: Although basically impossible to photograph, I tried my best. This ring reads like a book with a LOT of hallmarks. I will try to explain it to the best of my ability. Hallmarks: 10K (Gold Quality - 41.7% pure gold), 417 (same story, 41.7% pure gold, 10K), TGGC (Designer company: The Genuine Gemstone Company). Hallmarks: CR in circle (Actual designer artist abbreviations of name), 375 (9 Karat gold quality, 37.5% pure gold), sideways anchor in circle (Birmingham assay office), r in circle (date mark - this ring was created in 2016) Well, it is obvious there are 3 Gold stamps on this ring. 2 Indicate 10 K gold, and 1 indicate 9 K gold. The explanation would be that the harder gold (9K) is used in the setting part of the ring. The 10K gold would be used in the band. As indicated, this ring was created in 2016.