Chunk of a Koroit Queensland boulder opal nut, rough piece which shows natural pattern. Has an area of red green and blue fire, then a vein of the famous Koroit pattern that runs around the whole stone with fire in.
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This magnificent Rub Koroit boulder opal is a true masterpiece of natural creation. With a weight of 10.92 carats, this gemstone features a bi-colour/multicolour pattern that is truly mesmerising. The opal is in pre-shaped, pre-finished rough form and comes from Australia. It is perfect for jewellery making and comes in a unit type of kg. The gemstone has not been enhanced in any way and is completely natural in its creation. With this opal, you can add a touch of natural beauty to your jewellery collection. Rub Koroit 10.92Ct PreShaped Boulder Opal Prefinished Rough
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Australian Koroit Boulder Opal stone in the rough partially shaped ready to finish and polish.
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Interesting blue green opal fire patches. Source - Queensland Koroit. Weight - 1125 carats - 225g. 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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A chunk of a Koroit Queensland boulder opal nut, Sliced to show beautiful natural pattern and then one rough edge with lovely blue vein opal. Source - Queensland Koroit. Weight - 950 carats - 190g. Based in Cornwall.
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A chunk of a Koroit Queensland boulder opal nut, Sliced to show beautiful natural pattern and then one rough edge with lovely green blue with a tiny hint of red opal. Source - Queensland Koroit. Weight - 1050 carats - 210g.
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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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