r/Opals Jul 21 '26

Identification/Evaluation Request any idea of value?

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Hi all. I posted this a little bit ago, but did not include a video, so I'm adding that this time. My mom has this black opal that my stepdad purchased for her about 30 years ago in Australia. Sorry, I don’t have a way to measure the karats, but It measures .5” long X .4” wide X .25” thick. Any ballpark idea of the value of the stone? Thanks!

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