Jewelry industry professionals, please contact us for a discounted rate Item Description: One loose, unmounted, solid opal gemstone Species: Natural opal Origin: Australia Mining Area: Queensland Weight: 4.09 ct Measurements: 13.8x7.9x4.2 mm Shape: Free-form Treatment: None We guarantee this opal gemstone is genuine, solid, natural, and untreated opal from the mining fields of Australia. The opals have been cut and polished from their natural state, with no other alterations of enhancements applied. Request additional information