Nice Boulder Opal Specimen 158cts Queensland Australia Blue/Green Face :)

I have for sale a Nice Quality Boulder Opal Specimen from Queensland Australia. This weighs 158cts and is 50x38x10mm.,. Ironstone base with Nice Opal on the Top face, Blues/Greens, and then some Veins through the rest, to the back aswell,.,. Great looking piece, will clean up a nice Specimen, cut a cab, or just leave it as it is,.,. :)  Thanks for looking,..,.,