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Coverage dated May 13, 2026

Largest vivid blue-green diamond sells for record $17.3 million at Christie's auction

Headline from NBC 5 Dallas-Fort Worth

Christie's says a 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist has sold for $17.3 million.

NBC 5 Dallas-Fort Worth's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

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Reports & sources

9 articles, oldest first.

  1. NBC News

    ‘Ocean Dream’ blue-green diamond sells for more than $17 million at Christie’s auction in Geneva (opens NBC News)

    Published

    NBC News's feed description

    GENEVA — A 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist sold for more than 13.5 million Swiss francs ($17.3 million) on Wednesday, Christie’s said, calling it a record price for a stone of its kind sold at auction

  2. NBC 5 Dallas-Fort Worth

    Largest vivid blue-green diamond sells for record $17.3 million at Christie's auction (opens NBC 5 Dallas-Fort Worth)

    Published

    NBC 5 Dallas-Fort Worth's feed description

    Christie's says a 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist has sold for $17.3 million.

  3. Herald Bulletin

    'Ocean Dream' blue-green diamond sells for more than $17 million at Christie's auction in Geneva | Nation & World (opens Herald Bulletin)

    Published

    Herald Bulletin's feed description

    Christie

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.

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