Green & Violet 32ct Natural Australian Solid Koroit Boulder Opal. 36.6mm x 16.9mm x 7.0mm thick. This natural australian solid koroit boulder opal has rich colors of green and violet which fill the veins between the stone.The greens rate 5 on the scale of 5 for brightness. The colors flash and streak wonderfully with rotation of the opal and there is also play of color. Please note there are hairline cracks within the stone. We pride ourselves in offering you boulder opal with bright gem colours. We go the extra mile to offer top quality opals in all price ranges. The item "Green & Violet 32ct Natural Australian Solid Koroit Boulder Opal Video" is in sale since Tuesday, April 30, 2019. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones". The seller is "opals-downunder" and is located in Menai, NSW. This item can be shipped to North, South, or Latin America, all countries in Europe, China, Japan, Australia.