(IDEX Online) - Zimbabwe's Murowa Diamonds has blamed erratic power supplies for a fall in output.
Owners RioZim said the supply deficit remains a key risk across the group's operations despite a slight improvement in the first quarter of this year.
Figures for 2019 show production down seven per cent on the previous year from 740,244 carats to 685,000 carats.
The company has invested in generators for its gold mines at Dalny and Renco.
Rio Tinto sold its majority stake in the Murowa mine (pictured), 450km from the country's capital Harare, in 2015. The mine went online in 2004.