Petra Diamonds Ltd said full-year production rose 21 percent and that it expected to produce 2.9 million carats to 3 million carats for the year ending June 2014.
Petra has seven producing mines in South Africa
and one in Tanzania, said production for the year ended June 30
rose to 2,668,305 carats from 2,208,862 carats a year earlier.
Revenue rose 27 percent to $402.7 million.