o contain more than 102 million carats

Located in Angola , the Catoca is the fifth largest diamond mine in the world . Operated by Sociedade Mineira de Catoca , the mine is a joint venture with state-owned diamond company Endiama ( 32.8 percent ), ALrosA ( 32.8 percent ), China and state oil producer Sonangol ( 18 percent ) and Odebrecht of Brazil ( 16.4 percent ). The mine is estimated to contain 130 million carats of mineable diamond . The Catoca mine accounted for 70 percent of Angola ’ s total diamond output .

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