Nice Koroit Opal Sliced Specimen 156.6cts Patterns/Fires Ironstones Queensland Australia

I have for sale a Very Nice Koroit Opal Sliced Specimen from Queensland Australia. This one weighs 156.6cts and is 62x37x15mm.,. It is a Nut end section so has Pattern across the sliced face, and Skin/Sand on the back.,,. One end does show some colour going back into the stone, but it also thins out aswell. Very NiceGreens/Blue mixed into the pattern across the whole face,.., Should polish up as a Superb Specimen, or maybe try taking the back off and seeing what comes out of it, maybe a Couple of smaller, thinner pieces,..,  Thanks for looking,.,.,.