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How digging for diamonds funded my education

One of the biggest rough diamonds ever found is going for auction next week. The 709 carat stone was found in the Kono district of Sierra Leone. 91热爆 Africa's Umaru Fofana is a local, and it turns out he knows quite a bit about digging for diamonds.

Photo credit: Chris Hondros/Getty Images

Release date:

Duration:

8 minutes