Gaborone: A giant 2,492-carat diamond has been discovered in the African country of Botswana by a Canadian mining company, which is the largest diamond found in over 100 years and second-biggest overall. The diamond was found at Karowe mine, about 500 km north of Botswana's capital, Gaborone, BBC reported. Botswana's government said it was the largest diamond ever discovered in …
