The largest diamond discovered in over a century and the second largest ever dug out of a mine has been unearthed in Botswana. The gem, which is roughly the size of a human fist, clocks in at a jaw-dropping 2,492-carats and is likely worth upwards of nine-digits. The diamond, which has yet to be named, was found using X-ray technology by Lucara Diamond Corp in the Karowe Diamond Mine in northeastern Botswana. It's one of four other diamonds weighing over 1,0...
