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3. Boulder Opals

Queensland boulder opal is distinct in nature as it is naturally formed over brown ironstone. Over the years John has mastered the skill of understanding how to cut a stone with great precision to uncover the exquisite beauty hidden inside.


Boulder opal forms within cracks in boulders of ironstone. Boulder opal has its distinct naturally formed layer of brown ironstone. The Queensland boulder opals natural dark body, formed by the ironstone intensifies the vibrant colouring of a boulder opal, similar to a black opal.

Boulder opals are often cut in a freeform shape to ensure as much of the valuable opal is used. John has been cutting opals for over 45 years employing his skills to carefully cut through ‘veins’ of very thin boulder opal to display their unique beauty. At ODF you are sure to find a distinct piece that you love, knowing that time, precision and exceptional skill have been employed with each unique stone.

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