142.65 cts very big lightning ridge opal rough. I would not call it gamble stone because the porch between the second and third colour bar is thick enough to saw through and you should easily get two stones guaranteed.

The porch between the first and second colour bar is thin, you might be able to get the third stone from the first colour bar or have to sacrifice the first colour bar to make sure you have a big stone from the second colour bar.

The body tone of the third colour bar is quite dark, you might be lucky to get a very colourful black opal( we do not know until we cut it open).

There is also a thin red colour bar between the second and third colour bar, not sure that can be cut out as a stone.

Anyway,there will be a lots of fun of cutting it, so good luck with the rough!!

Size(mm): 36.50 X 33.54 X 22.77
Natural untreated

Photos and video are taken under normal desk lamp without any enhancement.

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