Found in Botswana, the Lesedi la Rona diamond is up for auction and valued at $70 million. Seth Wenig/AP hide caption

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Seth Wenig/AP

When Botswana Sells Its Big Diamond, Who Will Benefit?

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Physicists put diamonds at the center of this massive laser, to see what would happen. Matt Swisher/Matt Swisher/LLNL hide caption

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Matt Swisher/Matt Swisher/LLNL

Physicists Crush Diamonds With Giant Laser

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Yves Herman /Reuters /Landov

31 Suspects In 3 Nations Nabbed In $50 Million Diamond Heist

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