In this Wednesday May. 24, 2000 file photo, diamond prospectors sift through the earth in the Corbert mine in Waiima, Sierra Leone, 40 kilometers (25 miles) east of Bo in central Sierra Leone. A pastor in Sierra Leone's Kono district discovered and turned in the largest uncut diamond found in more than four decades in the West African country, the government said Thursday March. 16, 2017. (Photo by Adam Butler/AP Photo)
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