Botswana ; one of the largest discovered at the Orapa kimberlite field in over 40 years, Lucara's president and chief executive, William Lamb, said.The company also recovered two large stones weighing 124ct and 71.1ct from the central kimberlite domain, which was recently opened up for mining as the open pit expanded to the south."The recovery of a diamond of this size, the confirmed ...
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