41.3-ct boulder opal in a gold and diamond mounting. © Opal Auctions. Used with permission.

Opal Stone - Natural, Cabochon, Green, 41.3 ct - International Gem Society

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Opal Stone – Natural, Cabochon, Green, 41.3 ct

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Opal Stone

41.3-ct boulder <a href="https://www.gemsociety.org/article/opal-jewelry-and-gemstone-information/" data-wpel-link="internal">opal</a> in a gold and diamond mounting. © <a href="https://www.opalauctions.com/auctions/certified-ring-from-quilpie-opal-collection-679809" data-wpel-link="external" target="_blank" rel="external noopener nofollow">Opal Auctions</a>. Used with permission.

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Gemstone	Opal Stone
Natural or man made	Natural
Carat Weight	41.3
Jewelry type	Ring
Gem State	Cabochon
Color	Green, Blue
Transparency	Opaque
Multi-color	Bi-color