Opal Doublets are a layer of Precious White Crystal Opal with an added dark base. Australian Precious Opal, mined in Coober Pedy, South Australia. Opal colour moves across the Opal as the Opal moves. Opals are valued by their Brightness, movement of Colour, Pattern and Type of Opal. Photo’s are of the Opal Item available. With Certificate of Authenticity. Free postage in Australia Packaging includes Jewellery Display Box
