Green & Violet Natural Australian 66ct Solid Yowah Boulder Opal. 37.9mm x 21.7mm x 6.7mm thick. This big natural australian solid yowah boulder opal has colors of green and violet which fill the veins between the stone.The greens stand out the best and with rotation of the opal the colors flash and streak beautifully across the face and there is also play of color. 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. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones". The seller is "opals-downunder" and is located in this country: AU. This item can be shipped to North, South, or Latin America, all countries in Europe, China, Japan, Australia.