Junior miner BlueRock Diamonds has secured the option to buy Diacar’s processing plant, which is located at BlueRock’s Kareevlei mine, in the Northern Cape, for R1.6-million. Diacar has been operating the Diacar plant at the Kareevlei mine since November 2015 under a subcontracting agreement for which it was paid 40% of the diamond revenues generated from the plant.