During the period, the company sold 30,060 carats in the first three exports of 2014 from the mine, up 4% compared with the same period a year ago, and achieved an average value of $2,723 per carat.
Two diamonds, a 162.02 carat and a 161.31 carat were recovered in January and sold for $11.1m and $2.4m respectively.
Gem Diamonds CEO Clifford Elphick said, "Strong diamond prices continue to be seen at the Letšeng tenders and this, coupled with the continuing contribution of ore sourced from the Satellite pipe at Letšeng, has resulted in an increase in carats sold and an improvement in the average dollar per carat achieved."
The company said that Ghaghoo intersected kimberlite in the first production tunnel and drilling on the first of three ventilation holes is completed, while the work on second is well underway.
