The Karowe mine, in Botswana, has produced the world’s second-largest uncut diamond, Canadian company Lucara Diamond Corp announced on Thursday, sending the miner’s share price up 11% to C$1.68 a share.
At 1 758 ct, the diamond is second in size only to the 3 106 ct diamond that was mined at Cullinan, South Africa, in the early 1900s.