Nice Quality Coober Pedy Opal Rough/Rub 15.6cts Multicolour Bars/Crystal Bright

I have for sale a Nice Quality Coober Pedy Opal Rub/Rough, Light polish on that top face stone, from Coober Pedy Australia. This weighs 15.6cts and is 23x12x17mm,.,. Its a Shark Tooth shape with Nice Bright Green/Blue and some Orange/Pink Base through the thicker section at the top. Nice material and will cut a nice stone in the right hands,.,.  Or just a Great Specimen for someone,.,.,.  Thanks for looking,..,,.