Lightning Ridge is a small mining city exterior of New South Wales, Australia famend for its black opal, which might promote for over $10,000 per carat. However even for an knowledgeable miner, discovering high-quality black opal isn’t straightforward. After investing tens of 1000’s of {dollars}, a miner may not discover a single gem. However as quickly as a gem high quality black opal is discovered, opal cutters know they’ve a purchaser for it. That exclusivity, and black opal’s distinctive colours, make it probably the most costly gem stones on the earth.
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Why Black Opal Is So Costly | So Costly
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