Koroit Boulder Opal - 20,58ct
Crazy Koroit boulder opal with blue and green opal veins and flashes. The stone measures approx. 33x13x5mm. The gemstone was mined in Queensland, Australia and has a final weight of 20,58ct. This Koroit boulder opal is completely untreated; no treatment has been applied. The item is sold as seen in the picture. Take a look at the video!
