The output demonstrates an increase of 4% compared to 622,509 carats produced in similar quarter of previous quarter.
Among the total produced output, Finsch mined 343,988 carats in the quarter. Run of mine grade was down to 34.9 carats per hundred tons attributable to scheduled underground maintenance work.
For nine months period ended 31 March 2013, the production grew by 20% to 1,894,767 carats, as against 1,576,061 carats produced during the nine months period of the previous year.
At this production rate, the company said that it is in line to achieve its annual target for FY2013 of 2.65 million carats.
Commenting on the quarterly performance, Petra Diamonds CEO Johan Dippenaar said that the company has delivered a positive performance and is keen to reach its annual production goal.
"Likewise, we are encouraged by the firmer trend within the rough diamond market, giving a positive outlook for the remainder of this financial year," added Dippenaar.
Meanwhile, the revenues from the sale of the diamonds during the quarter were $105.7m, 8% up from $98m grossed in the Q3 of previous fiscal.
