JUNEAU, Alaska - A gemstone, billed as one of the largest gem-quality opals ever found, was sold for $143,750 at auction in Alaska on Sunday. The opal, dubbed the "Americus Australis," weighs more ...
JUNEAU, Alaska — A brick-like gem billed as one of the largest opals ever found was sold for $143,750 during an auction in Alaska on Sunday. The “Americus Australis,” which weighs 11,855.28 carats, ...
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