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Lot 0219
Dimensions (mm): 37 x 29 x 7mm. Weight (carats): 74.15 carats. The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. Here opal is found as a kernel in small concretions. Each opal is individually cut and polished by hand. - 9066-010818-OA-53950

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74.15ct View Koroit Boulder Opal

Estimate $200 - $400Mar 24, 2018