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Raise a Glass to the Black Opal Drink: Your New Favorite Vibrant Blue Cocktail
Looking to impress your guests with a visually striking cocktail? The Black Opal Drink is a vibrant blue creation that ...
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Why black opal is one of the most expensive gemstones in the world
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.