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Rare 27.3ct Polished Double Sided Koroit Boulder Opal “Nut” Crystal Cabochon - Australia - Item:O18018
Koroit Opal “Nut” with phenomenal color within the veins!!
Incredible color shifting throughout the entire specimen which appears similar to lightning!
Weight: 27.3 carats (5.47 grams)
Dimensions: 1.2”/1” (30x25x4 mm)
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