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Following is a transcript of the video. Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy.

Taylor Swift was seen showing off her new ring, which fans are convinced is from her boyfriend, Travis Kelce. After examining photos of the new ring, which Swift wore on the middle finger of her right ...

Opal is a precious resource in Coober Pedy and the international market for opals is what helps keep the outback South Australian town going. Miners rely on buyers coming from Hong Kong and India to ...

When it comes to stone dials, the options vary from lapis to malachite, tiger’s eye to onyx, and coral to turquoise. Alternatively, most rainbow watches employ a range of carefully sourced sapphires.

A gemstone, billed as one of the largest gem-quality opals in existence, was sold for $143,750 at auction in Alaska on Sunday. For the latest headlines, follow our Google News channel online or via ...