You could proudly own a piece of the cosmic universe. If you have a few spare million lying around, anyway. Sotheby’s will soon auction off a rare black diamond. And this diamond does not disappoint.

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An extremely rare diamond believed to be from outer space will be going up for auction next month. Auction house Sotheby’s Dubai will be selling the 555.55-carat black diamond, known as "The Enigma," ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...

The Enigma, the world’s largest cut diamond, as verified by the Guinness Book of World Records, is now the face of a rising cryptocurrency. It was sold at auction for an astronomical price – in ...

Over four billion years ago, when the solar system was still young, an asteroid hundreds of miles in diameter rammed into one of the many equally large hunks of rock spinning chaotically around the ...