Rare Blue Diamonds May Be Earth’s Deepest Secret

Rare Blue Diamonds May Be Earth’s Deepest Secret
A Christie's employee poses with the 14.62 carats Oppenheimer Blue diamond during a preview in Geneva, Switzerland May 12, 2016. Reuters/Denis Balibouse/File Photo
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WASHINGTON—The Hope Diamond, a rare blue diamond that is one of the world’s most famous jewels, has had a complicated history, passing through the hands of monarchs and bankers and heiresses and thieves before landing for all to see at a Washington museum.