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.
GOLD COAST, Australia--(BUSINESS WIRE)--The world’s largest online auction website for natural Opals and Gemstones has announced two new auction formats. The ‘Auctioneers Pick’ which runs every ...
Once the ugly step-gem to prettier birthstones (poor October babies), opals now come in amazing colors, shapes and sizes, and are brimming with stylish possibility. Jewelry designers are inspired by ...
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