Opal is one of the most sought after stones and is primarily sourced from Australia. Coober Pedy and Lightning Ridge are a couple of the best known locations for the more precious and colourful white, black and cream opals. Koroit Opal by contrast is a deep brown ironstone with inclusions that flash through when viewed at different angles.
19mm x 14mm x 7mm (15 Carats)
26mm x 19mm x 7mm (26 Carats)
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