Lesotho is shining once again. The worlds fifth largest diamond has recently been found at the Letseng Mine and is the largest to date in Lesotho’s history. This 6.4-ounce rough stone is about the size of two golf balls. The 910-carat gem diamond is the largest discovered at the mine since 2006 when the 603-carat Lesotho Promise was dug up. The diamond belongs to a category that represents less than 1% of all mined diamonds in the world and is more…