|Israel Diamond Institute||Enlarge|
After Petra neatly doubled the 1.1 million carats it produced in 2011 with 2.2 million carats in the 2012 season, the firm plans to harvest five million carats of diamonds annually in seven years' time. The company achieved this growth primarily by commencing extraction at its Finsch mine in September. The mine joins Petra's roster of mines which includes Cullinan, Koffiefontein, Williamson and Kimberley.
As of result of its successes, Petra intends to jettison its fissure mines, which include Helam, Sedibeng and Star, saying that these are more appropriate for entry-level players in the diamond industry, according to Mining Weekly. These mines are thought to contain 12 to 15 years' worth of diamonds.