Astronomers discover Earth-sized 'diamond' 900 light years away

by tech on June 27, 2014

The world’s largest diamond, the Cullinan, is a tad over 3,100 carats uncut. It’s estimated value is some $2 billion, and it only weighs about 1.37 pounds. That stone, while enormous relative to others like it, is but an invisible speck when up…

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