Size 7.75 Sterling Iridescent Green Opal Ring
• Metal: Sterling Silver
• Stone: Natural Green Opal&White Zircon
• Dimensions: 12.8X19.3Mm
• Total Weight: 3.6 Grs
• Finish: Rhodium
Archaeological evidence suggests that Opal was first mined in Virgin Valley, North America, over 10,000 years ago. History also suggests that the Aztecs were mining opal in South and Central America around the same time. Opal was discovered in Australia at Lightning Ridge, New South Wales in the late 1880s, and the first shaft was dug in 1901 or 1902. While it did not appear on the world market until the 1890s.