Australia is located and also accounts for about 95% of all expensive opals in the world. The remaining 5% is more or less divided by about 19 state territories. In most of them expensive opals are only found and only in nine states their mining takes place. Australian expensive opals differ from precious opals found in the rest of the world mainly from their origins. While in the world, in all cases, the result of volcanic activity and hydrothermal processes, opal was formed in Australia mostly as a product of the weathering process.
Natural precious opal from Australia (Lightning Ridge) - 7,2x5,6x3,1mm, 0,59ct
Natural precious opal from Australia (Lightning Ridge) - 8,1x5,8x2,5mm, 0,85ct
Natural precious opal from Australia (Lightning Ridge) - 7,4x5,2x1,8mm, 0,34ct
Natural precious opal from Australia (Lightning Ridge) - 9,9x4,4x3mm, 0.76ct
Natural precious opal from Australia (Lightning Ridge) - 12,6x10,6x3,3mm, 2,89ct
Natural precious opal from Australia (Lightning Ridge) - 10,5x5,7x2,1mm, 0,88ct
Natural precious opal from Australia (Lightning Ridge) - 12,9x11,6x2,6mm, 2,41ct
Natural precious opal from Australia (Lightning Ridge) - 6,2x6,1x2,3mm, 0,71ct
Natural precious opal from Australia (Lightning Ridge) - 10,3x7,7x4mm, 1,87ct
Natural precious opal from Australia (Lightning Ridge) - 6,2x5,7x2,9mm, 0,56ct
Natural precious opal from Australia (Lightning Ridge) - 9,4x4,3x2,6mm, 0,63ct
Natural precio us opal from Australia (Lightning Ridge) - 13x10,7x2,4mm, 2,71ct
Natural precious opal from Australia (Lightning Ridge) - 7,2x6,6x2,2mm, 0,63ct
Natural precious opal from Australia (Lightning Ridge) - 8,8x5,6x2,4mm, 0,66ct
Natural precious opal from Australia (Lightning Ridge) - 12x10,3x4,6mm, 3,03ct
Natural precious opal from Australia (Lightning Ridge) - 13,9x10,8x3,6mm, 3,18ct
Natural precious opal from Australia (Lightning Ridge) - 11x9,4x3mm, 2,23ct
Natural precious opal from Australia (Lightning Ridge) - 13,9x6,7x3,7mm, 2,82ct
Natural precious opal from Australia (Lightning Ridge) - 11,3x6,4x1,9mm, 0,92ct
Natural precious opal from Australia (Lightning Ridge) - 7,8x5,5x1,8mm, 0,46ct
Natural precious opal from Australia (Lightning Ridge) - 9,3x4,3x2,8mm, 0,81ct
Natural precious opal - 9,5x7,8x3,3mm, 1,72ct
Natural precious opal from Australia (Lightning Ridge) - 7,8x7,6x2,2mm, 1,2ct
Natural precious opal from Australia (Lightning Ridge) - 15x11,6x2,6mm, 3.21ct
Natural precious opal from Australia (Lightning Ridge) 13,4x4,3x2,4mm, 0,76ct
Natural precious opal from Australia (Lightning Ridge) 6,8x5,5x2,8mm, 0,61ct
Natural precious opal from Australia (Lightning Ridge) 8,2x4,7x1,8mm, 0,44ct
Natural precious opal from Australia (Lightning Ridge) 13x5,4x2mm, 0,86ct
Natural precious opal from Australia (Lightning Ridge) 11,3x5,9x3,1mm, 1,13ct
Natural precious opal from Australia (Lightning Ridge) 6,8x5,6x1mm, 0,18ct
Natural precious opal from Australia (Lightning Ridge) 7,9x6,5x1mm, 0,25ct
Natural precious opal from Australia (Lightning Ridge) 8,8x7,7x1,5mm, 0,54ct
Precious opal from Ethiopia - Wello - 14,4x11x4,6mm,...