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This unique specimen is one of the world’s largest known rough ruby gemstones. This unique single natural ruby crystal weighs 8.2 lbs. or 18,696 carats. The ruby is semi-translucent to opaque and contains rutile, which may create a six-ray star if cut en cabochon. The crystal displays a strong red fluorescence when exposed to long-wave ultraviolet light. It measures 122.4mm x 112.3mm x 133.9mm.








The ruby is identified in GIA Report 15171991.
CreditRuby

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