Antwerp (Belgium): The biggest diamond to be found in 13 years, the "Lesotho Promise", was sold on Monday at auction for more than $12 million and is expected to fetch in excess of $20 million once it is cut up.
The 603-carat (120 gram) diamond, named after the tiny African mountain kingdom where it was found, went under the hammer at the Antwerp Diamond Centre and was sold to the South African Diamond Corporation, partly owned by luxury jeweller Graff.