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Gem Diamonds hit by market slump as impairments drive deep 2025 loss

Story Highlights
  • Gem Diamonds’ 2025 revenue and EBITDA fell sharply, leading to a $104 million loss driven by a major Letšeng impairment and weaker rough diamond prices.
  • The company launched a cost-cutting Business Resilience Programme and faces refinancing risk, but stresses strong safety, emissions progress and plans for facility renewal.
  • Looking for the best stocks to buy? Follow the recommendations of top-performing analysts.
Gem Diamonds hit by market slump as impairments drive deep 2025 loss

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Gem Diamonds ( (GB:GEMD) ) has issued an announcement.

Gem Diamonds reported a sharp deterioration in 2025 results as revenue fell 36% to $98.4 million and underlying EBITDA dropped 87% to $3.9 million amid prolonged weakness in the rough diamond market. The group swung to an attributable loss of $104 million after a $77.5 million impairment at Letšeng, while net debt rose to $20.1 million as lower prices, reduced volumes of large stones and reliance on lower-grade Main Pipe ore weighed on performance.

Management launched a Business Resilience Programme to cut costs, streamline operations and offset market pressures, achieving record low unit operating costs and securing royalty relief from the Lesotho government. Despite a material going-concern uncertainty linked to refinancing revolving credit facilities expiring in December 2026, the company highlighted strong safety performance, early achievement of a 30% emissions reduction target and plans to renew lending lines as it positions for an eventual market recovery.

The most recent analyst rating on (GB:GEMD) stock is a Sell with a £3.00 price target. To see the full list of analyst forecasts on Gem Diamonds stock, see the GB:GEMD Stock Forecast page.

Spark’s Take on GEMD Stock

According to Spark, TipRanks’ AI Analyst, GEMD is a Neutral.

The score is primarily supported by improving financial performance (profitability turning positive and free cash flow recovering strongly) and a stable leverage profile. It is held back by weak technicals (price below all major moving averages with negative MACD) and earnings-call signals of near-term operating strain (negative EBITDA, YoY revenue decline, impairment) despite ongoing cost actions and available liquidity.

To see Spark’s full report on GEMD stock, click here.

More about Gem Diamonds

Gem Diamonds is a London-listed diamond producer focused on high-value rough stones, owning 70% of the Letšeng mine in Lesotho. Letšeng is renowned for large, exceptional white diamonds and is regarded as the highest dollar-per-carat kimberlite mine globally, giving the group a niche position at the premium end of the diamond market.

Average Trading Volume: 770,419

Technical Sentiment Signal: Sell

Current Market Cap: £6.44M

Find detailed analytics on GEMD stock on TipRanks’ Stock Analysis page.

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