DiamondBuzz
NMDC to resume mining at Panna Diamond Mining Project
India’s Panna Diamond Mining Project, 15km from Panna,is to resume mining, after overcoming environmental concerns from a neighboring tiger reserve. Work has been halted several times at the mine. In December 2020 environmental clearances lapsed after concerns were raised by the nearby Panna Tiger Reserve.
The state-run National Mineral Development Corporation (NMDC), India’s biggest iron ore merchant miner, hopes to produce 6,500 carats, valued at $3.4m, this financial year.
Work has been halted several times at the mine. In December 2020 environmental clearances lapsed after concerns were raised by the nearby Panna Tiger Reserve. India’s Supreme Court has allowed NMDC permission to resume mining, provided it adheres to specific guidelines relating to tigers and the environment.
DiamondBuzz
Rio Tinto Diamond Output More Than Doubles
Diamond production at Rio Tinto rose in the third quarter amid a strong comparison with the previous year, when the company temporarily closed its Diavik mine in Canada.
Output from the mine surged 110% year on year to 1.1 million carats for the three months that ended September 30, Rio Tinto said Tuesday. A favorable comparison with the same period of 2024 contributed to the growth. Last year, the miner temporarily shut one of its main pits due to unstable ground on the road leading to the area, which can cause caving or sinking.
However, the total was 8% lower than the 1.2 million carats Rio Tinto recovered in the second quarter. In the first nine months of 2025, production soared 67% year on year to 3.3 million carats from the processing of 1.4 million tonnes of ore. That is relative to 937,000 tonnes in the first nine months of last year.
Diavik is currently Rio Tinto’s only diamond asset. The mine was originally due to close this year. However, the miner invested $40 million to extend the project’s life into 2026, adding more than 2 million carats of rough production. The company is currently exploring for diamonds in Angola.
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