second largest diamond

A 2,492 carat diamond was unearthed at Botswana’s famed Karowe mine this week by Canada’s Lucara Diamond, making it one of the largest stones to be excavated to date. Lucara Diamond, in a press release Wednesday, said the “exceptional 2,492 carat diamond” was a “remarkable find,” and “one of the largest rough diamonds ever unearthed.”…