Colored Gemstones

Gemfields restates 2025's writedown to $65.0m from $35.0m

Gemfields expects a $73.5m net loss for the six months to 30 June, after a $125.2m impairment at Montepuez. That compares with a $20.5m loss a year earlier, and interim results follow on 30 September.

By Carat Capital

What changed

The 2025 charge grew. Gemfields restated its FY2025 impairment to $65.0m from $35.0m. It expects a $73.5m net loss for the first half of 2026.

What it means

  • If you hold the shares: The loss is non-cash at its core. Headline earnings per share turned positive, at USDc 0.6 against a 1.5c loss.
  • If you buy Mozambican ruby: The writedown prices weaker premium grade, not weaker demand. Recoveries are the constraint the company names.
  • What this is not: Audited. This is a trading statement, unreviewed by auditors, ahead of results on 30 September.

Key figures

FY2025 impairment, restatedfrom $35.0m as first reported$65.0m
H1 2026 impairment at Montepuez$125.2m
H1 2026 net loss after taxagainst $20.5m in H1 2025$73.5m
Headline earnings per sharea 1.5c headline loss a year agoUSDc 0.6
H1 2026 auction revenue$102.8m

Source: Gemfields Group Limited trading statement for the six months ended 30 June 2026, released 25 September 2026 07:00 UK on RNS and SENS · read from the announcement text, not a summary

A $30m adjustment to 2025

Restated upward. The impairment booked for 2025 moves to $65.0m from $35.0m. Detail is promised in the interim statements.

No cause given. The announcement names no reason for the $30.0m adjustment. It says further details will follow in the interim financial statements.

Gemfields' first half, 2025 against 2026Gemfields trading statement, 25 September 2026 · the change column is Carat Capital's arithmetic, the company states no percentages
MeasureH1 2025H1 2026Change
Auction revenue$60.0m$102.8m+71.3%
Montepuez revenue$38.9m$76.1m+95.6%
Kagem revenue$21.1m$26.7m+26.5%
Net loss after tax$20.5m$73.5m3.59 times wider
Loss per shareUSDc 1.7USDc 4.3+2.6c of loss
Headline EPS−USDc 1.5+USDc 0.6+2.1c, to a profit
Notes on this table

The division. 102.8 ÷ 60.0 = 1.7133, printed as +71.3%; 76.1 ÷ 38.9 = 1.9563, +95.6%; 26.7 ÷ 21.1 = 1.2654, +26.5%; 73.5 ÷ 20.5 = 3.585, printed as 3.59 times wider rather than as a percentage because a widening loss is not a rate of return.

The segments add up. 38.9 + 21.1 = 60.0 and 76.1 + 26.7 = 102.8, so the two mines account for the whole auction line in both periods.

One document difference, disclosed. the 30 July operational update put first-half auction revenue at $102.9m and this statement puts it at $102.8m; a grep of the 25 September announcement returns no instance of 102.9, so the figure printed here is the trading statement's own.

Not comparable year on year. the company states that a mixed-quality ruby auction was deferred from December 2025 into February 2026, which lands in this half and not the last.

Ruby grade, not ruby demand

Recoveries drove it. The $125.2m charge follows lower-than-expected premium ruby recoveries at Montepuez. David Lovett, interim chief executive, said "the first half of 2026 was a challenging period for Gemfields".

Revenue rose anyway. Auction revenue reached $102.8m against $60.0m, up 71.3%. A deferred mixed-quality ruby auction lifts that comparison.

Headline earnings turned positive

Two different answers. Loss per share widened to USDc 4.3 from USDc 1.7. Headline earnings per share, which strips the impairment out, came in at USDc 0.6.

More shares outstanding. Weighted average shares rose to 1,724,230,526 from 1,224,967,113. The per-share loss therefore rose by less than the total loss did.

What to watch

  • 30 SeptemberInterim results on RNS and SENS at 07:00 UK, with the restatement detail the statement defers, and a 09:00 webcast.
  • 30 SeptemberWhether the audited figures hold the $73.5m loss, which this statement gives as unreviewed.
  • H2 2026Montepuez premium recoveries, the single input that produced the impairment.

The story so far

  1. All 44 commercial emerald lots sold for $29.6m at $9.72 a carat
  2. First-half auction revenue of $102.9m, from the July operational update
  3. Kagem took its rough emeralds to Jaipur instead of the London room
  4. Gemfields built a middle market for ruby at $66 a carat

Go deeper

What would change this call

Sustained premium recoveries at Montepuez. The impairment reflects a forecast of grade, not a sale, so a run of better premium rough would put the charge back under review and would make the positive headline figure the truer read of the half. The company says recent recoveries show early signs of improvement and that further evidence is required.

Why headline earnings and the reported loss disagree

Headline earnings per share is a South African measure, required by the JSE, and it exists precisely for a case like this one. It strips out items that are not part of operating performance, and an impairment of a mining asset is the textbook example: it is a non-cash write-down of what the company thinks the ground will yield in future, booked today. So the two figures here are not in conflict and neither is the honest one on its own. The reported loss of $73.5m says the company has revalued Montepuez downward by a large amount. The headline figure of USDc 0.6 says that, setting that revaluation aside, the half broke into profit on a per-share basis for the first time in a year. A reader who wants to know whether the mines traded better looks at the headline figure and the revenue line. A reader who wants to know what the asset is now carried at looks at the loss. The restatement matters to both, because it moves the base the 2026 charge is measured from.

Method

The primary document is Gemfields Group Limited's trading statement for the six months ended 30 June 2026, published on RNS and SENS at 07:00 UK on 25 September 2026 and read here through Investegate's announcement page, fetched with a browser user agent, 200, 69,190 bytes. The announcement's own text was read rather than the AI summary the page places above it, and every printed digit string was grepped in the saved file first: '73.5' 2 hits, '125.2' 2, '102.8' 2, '76.1' 1, '26.7' 1, '20.5' 2, '65.0' 1, '35.0' 1, '30.0' 1, '4.3' 2, '0.6' 3 and '1,724,230,526' 1. The figure '102.9' returns zero hits in that file, which is how the difference from the 30 July operational update was established rather than assumed. The announcement list for GEM was read first to identify the document, and it dates the trading statement 25 September 2026 and shows the next scheduled release as interim results; the statement itself names those results for 30 September 2026, which is the date printed here. Every percentage in the table is this desk's own division and is shown in the table note. The restatement of the FY2025 impairment from $35.0m to $65.0m is quoted from the announcement's own sentence, which attributes it to the identification of a $30.0m adjustment and defers the explanation to the interim financial statements; no cause is printed here because the document gives none. The archive was checked by reading each prior Gemfields article rather than counting hits. The closest is 31 July 2026, which covers the same company and the same window, the first half of 2026, and printed auction revenue of $102.9m from the 30 July operational update. That document carried no loss figure, no impairment and no earnings per share. The verdict is therefore advanced rather than repeat, and what advanced is named: revenue previously, the loss, the impairment, the restatement and the per-share figures now. The auction revenue line is not the news here for that reason, and the headline is not built on it.

Sources3