Petra Diamonds buys 75pct of De Beers Tanzania mine

LONDON, Sept 9 (Reuters) - AIM-listed miner Petra Diamonds Ltd (PDL.L) said it had acquired a 75 percent stake in Tanzania's Williamson diamond mine for $10 million in cash from Cheviot Holdings, a unit of De Beers.

"Williamson will add a further major mine to our portfolio, with the potential to deliver considerable value to our shareholders," Petra Chief Executive Johan Dippenaar said in a statement on Tuesday.

"This acquisition also marks Petra's entry into Tanzania, further diversifying the Group's geographical spread across Africa," he added.

The Government of Tanzania owns the remaining 25 percent of the mine.

De Beers is 45 percent owned by mining group Anglo American (AAL.L). (Reporting by Mike Elliott; Editing by Louise Ireland)