Gem Diamonds' Turnaround Sparks: Cost Discipline Meets a Resurgent Top End
H1 2026 sees a swing to profit as average dollar per carat climbs 38% amid a halved rough supply and a leaner cost base.
GEMD.L · Earnings Call · 2026-09-03
A Diamond in the Rough: H1 2026 Results
When the world's diamond miners are bleeding red ink, Gem Diamonds (GEMD.L) has quietly engineered a remarkable turnaround. The operator of the Letšeng mine in Lesotho – renowned for its exceptional large stones – reported a 32% jump in revenue to $59.7 million and swung to an attributable profit of $0.6 million from a loss of $11.7 million a year earlier. The key driver? A business resilience program launched in July 2025 has slashed costs, while a recovering market for the company's top-end diamonds is translating into sharply higher realized prices.
Would you sell your house to buy the shares? You should have done that yesterday, then you could have bought your house back and kept the shares.
That cheeky quip from CEO Clifford Elphick underscores the executive confidence that accompanies the numbers. But it's the operational story that matters most.
The Resilience Program Bites
The business resilience program has been aggressive: waste mined fell 82% (to 300,000 tonnes from 1.7 million), direct truck-and-shovel activities were in-sourced, and local-currency cash costs per tonne treated dropped 15% to LSL 197. CFO Michalakis Michael noted that the all-in cash cost fell 23% in local currency even amid “elevated fuel prices and broader inflationary pressures.” The company also secured a royalty suspension from the government of Lesotho, which cut royalty and selling costs by 86%.
“We've cut the fat away. We've got into muscle now. We don't want to get into bone.” — Clifford Elphick, Chief Executive Officer (CEO) · 2026-09-03
Elphick's warning about diminishing returns is a candid acknowledgment that the easy cost gains are behind them – but the leaner cost base is now feeding through to the bottom line, exactly as the market for large diamonds begins to firm.
Pricing Power at the Top End
The most striking number is the average dollar per carat – which surged 38% to $1,395 from $1,008 in H1 2025. While some of that reflects a higher-quality mix, Elphick attributes it to genuine market improvement. The 347-carat Lesotho Jubilee – recovered to celebrate Lesotho's 60th anniversary and set for tender in September – epitomises the company's niche: ultra-large, high-quality stones that are increasingly scarce as global rough supply falls.
“But it's a bit of both, truth be told... it certainly has the feel that the bottom of the market may well have been found.” — Clifford Elphick, Chief Executive Officer (CEO) · 2026-09-03
That assessment is supported by a broader structural shift. Elphick pointed to rough supply collapsing from roughly 172 million carats at peak to under 90 million, with major mines closed or on care and maintenance. Meanwhile, consumer understanding of the difference between natural and synthetic diamonds is sharpening, benefiting the mined product.
The diamond market is resetting, and Gem Diamonds appears well positioned to ride that wave. The company's focus on stones exceeding 100 carats – of which it recovered three in H1 and two more after period-end – keeps it at the premium end of the market, where demand has been resilient even as lab-grown gems pressure the lower tiers.
Financial Healing and the Road Ahead
The balance sheet has transformed. Net debt was cut from $20.1 million to just $0.5 million, cash rose to $20.2 million, and the company retained ~$17 million of undrawn facilities. The swing to positive EBITDA ($8.6 million) and a return to attributable profit are tangible outcomes of the cost program and pricing tailwind.
But the market backdrop remains cautious: the pending De Beers sale by Anglo American, ongoing conflicts, and China's sluggishness are all headwinds. Elphick remains circumspect about the second half, yet he expects the positive trend to hold. The company is guiding to a similar cost level, but as he says,“We're always fighting inflation and exchange rates.”
Why It Matters
For a micro-cap miner, this is a decisive catalyst. Gem Diamonds has effectively passed the stress test: it survived the worst of the diamond downturn through aggressive self-help, and is now levered to any sustained recovery in large-stone prices. The improvements are not merely cyclical – the attributable profit and the near-zero net debt show a structurally stronger business.
The key risk remains the refinancing of ~$76 million in credit facilities expiring in December 2026, which the company is actively negotiating. Yet the strengthened balance sheet and improved operating performance provide a constructive platform.
Elphick's parting advice to buy the house and the shares may be cheeky, but the numbers suggest the early bargain hunters might have been onto something. Gem Diamonds is no longer a distressed story – it's a turnaround in motion.