Koroit Boulder Opal Slice Piece. Excellent natural pattern from the piece, plus an eye of fire pattern. Source - Queensland Koroit. Weight - 260g - 1300 crt. Based in Cornwall. (watch out for the ones saying gamble rough, no/little colour etc you are just buying worthless potch).
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Massive Koroit Boulder Opal Piece. Loads of natural pattern and an area of green fire that's been exposed. Source - Queensland Koroit. Weight - 753g - 3765 crt. Based in Cornwall. (watch out for the ones saying gamble rough, no/little colour etc you are just buying worthless potch).
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Dimensions (mm) 38.000 x 25.000 x 7.000mm Weight (cts) 85.000 Type Rough Shape Freeform
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A chunk of a Koroit Queensland boulder opal nut, Split to show beautiful natural pattern and then rough edge with lovely red green blue vein opal under the skin of the nut. Source - Queensland Koroit.
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Big chunk of a Koroit Boulder Opal Nut, Excellent natural pattern. Flecks of colour lines showing under the skin. Source - Queensland Koroit. Weight - 230g - 1150 crt. Based in Cornwall. (watch out for the ones saying gamble rough, no/little colour etc you are just buying worthless potch).
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Kingstone Chunk of a Koroit Queensland boulder opal. Slice and rough piece which shows amazing natural pattern. Has a large area of exposed blue mauve opal. Weight - 371g - 1855crt. Source - Queensland Koroit.
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The rough shape of the gemstone retains the authentic beauty of its natural form, unpolished to preserve its raw, eye-catching charm. Its excellent cut grade ensures that the stunning bi-colour/multicolour gemstone effect is showcased, while the eye-clean clarity grade confirms its quality.
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The rough shape of the gemstone retains the authentic beauty of its natural form, unpolished to preserve its raw, eye-catching charm. Its excellent cut grade ensures that the stunning bi-colour/multicolour gemstone effect is showcased, while the eye-clean clarity grade confirms its quality.
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