A unique, high quality Australian Boulder Opal stone h dreamy greens, golds, and blue. Completely raw and natural, this one of a kind beauty is hand set by Glamrocks Jewelry into sterling silver. It has a half round Sterling Silver band. Ring is a size 6.5 This ring is one of a kind, and is the ring shown and can not be re-sized. We do have several other stones on hand for custom orders, please message me! Stone measures 17mm x 33mm +++Boulder Opals are found in Western Queensland Australia. Taking millions of years, Boulder Opals are formed in the cracks and veins of Ironstone boulders. They represent purity and intensity, help balance emotions, calm the mind, and clear and strengthen the aura.++++