GIA Certified, Report Number 2191376400. Dimensions = 11.86 11.42 8.37mm. 20th and 35th Wedding Anniversary Ring. Refractive Index = 1.58 - 1.60. Emerald is sourced from Zambia.Gold Purity = 18K Solid Yellow Gold. Ring Weight = 9.05g. Ring Size = Resizable 6.5 - 9.5, Presently Size 8.0. GIA Certified Zambian Emerald 10.17ct 18ct Gold Ring - YouTube. The item "GIA Zambian Emerald 10.17ct, 18K Solid Gold Ring, Natural, Resizable 6.5-9.5, Now8" is in sale since Monday, March 25, 2019. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "goldstandardgems1970" and is located in Grand Prairie, Texas. This item can be shipped worldwide.