2.44 Carat Black Opal, Oval, 10.3x9 mm, Australia -
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Australian Black Opal Gemstone 5.65ct - Opal Minded
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![How To Value Opal - The 10 Factors [Guide] | Opal Auctions](https://df2sm3urulav.cloudfront.net/tenants/oa/uploads/content/59683c445b98d.jpg "How To Value Opal - The 10 Factors [Guide] | Opal Auctions")
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Australian Black Opal 2.25ct - Opal Minded
Australian Black Opal Gemstone 2.30ct - Opal Minded
