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Carat weight alone cannot explain fine opal value. Australian Opal Cutters examines how type, body tone, brightness, colour range, pattern, direction, transparency, cut, condition and jewellery craftsmanship interact—helping buyers compare black opal and other Australian opals with greater confidence.

Australian Opal Cutters presents a practical five-stage method for comparing black opal in person. Learn how body tone, brightness, pattern, direction, cut and condition interact—and why the darkest stone or a single red flash does not automatically make the strongest choice.