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World’s Largest Vivid Blue-Green Diamond Fetches Record $17.3 Million

Posted on May 13, 2026
By Forbes
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1 min read

World’s Largest Vivid Blue-Green Diamond Fetches Record $17.3 Million

The 'Ocean Dream,' 5.5-carat fancy vivid blue-green diamond sold for $17.3 million at the Christie's Magnificent Jewels, setting record price for a diamond of its type.