The gemstone miner says lower recoveries of high-quality rubies at its Montepuez operation in Mozambique produced a major impairment and will widen its first-half 2026 net loss to about $73.5m.
Gemfields recorded a $125.2m impairment charge tied to the Montepuez ruby mine in Mozambique.
The company expects its interim net loss for the six months to June 2026 to widen to about $73.5m.
Gemfields attributes the impairment to a decline in recovery rates of high-quality rubies, which weakened H1 2026 financial performance.
Gemfields has announced a significant impairment related to its Montepuez ruby mine in Mozambique and said the charge will widen its interim net loss for the six months to June 2026. The company links the impairment to lower recoveries of high-quality rubies, which reduced revenue quality for the period.
Gemstones such as high-quality rubies command much higher prices than lower-grade material. A drop in the proportion of top-tier stones recovered in mining production reduces auction proceeds and overall revenue quality. For a miner like Gemfields, whose business model relies on selling rough gemstones through periodic auctions, a sustained fall in premium recoveries can hit margins and cash flow quickly.
The impairment is an accounting recognition that reduces the carrying value of the Montepuez asset on Gemfields' balance sheet. It directly reduced reported profit in the period and pushed the interim net loss higher. The company explicitly tied the charge to operational performance at Montepuez — namely, the reduced recovery of high-quality rubies during the six months to June 2026.
Gemfields' mid‑2026 results were materially affected by a $125.2m impairment at its Montepuez ruby mine due to lower recoveries of high-quality rubies. That charge is expected to widen the company's interim loss to about $73.5m for the six months to June 2026. The commercial implication is straightforward: fewer premium rubies recovered equals weaker auction receipts and weaker near-term financial performance until recoveries improve.
The announcement was reported in late September 2026 and tied to the six-month reporting period ending 30 June 2026.
Aim-listed Gemfields has reported that its key operating assets, Montepuez Ruby Mining (MRM), in Mozambique, and Kagem Mining, in Zambia, generated revenues of $76.1-million and $26.7-million respectively in the six months to June 30, compared with $38.9-million and $21.1-million respectively for the same period last y
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