Africa’s largest diamond miner posts $511 million loss amid weak Chinese demand and U.S. tariff pressures

De Beers reported an underlying EBITDA loss of $511 million in 2025 versus a $25 million loss in 2024, with total revenue broadly steady at about $3.5 billion while realised prices fell; rough diamond production declined 12% to 21.7 million carats as the company dialled back output amid weak Chinese demand, higher inventories and competition from lab-grown diamonds. Management cut unit costs and reduced capex to $353 million, Anglo American took a $2.3 billion impairment on weaker long-term price expectations, and the group forecasts 2026 production of 21–26 million carats while Anglo advances a structured separation of De Beers; US tariffs on India are cited as an additional near-term supply‑chain headwind.

Analysis

Market structure: Weak Chinese luxury demand, US tariffs on India and rising lab-grown penetration shift pricing power away from natural-diamond midstream and retailers toward lab-grown producers and discount channels. De Beers cut production 12% to 21.7m carats and guides 21–26m for 2026 — a tactical supply response that will support prices only if inventories (currently elevated) fall by ~20–30% over 6–12 months. Botswana, South African and Namibian fiscal/currency risk rises as mining cashflows decline, creating second-order sovereign-credit and FX moves.

Risk assessment: Near-term tail risks include a tariff extension (high-impact to India cutting processing flows) or a deeper China luxury slowdown that knocks realized prices >15% further; operational tail risks include strikes or mine flooding that could abruptly reduce supply and spike prices. Time horizons: immediate — tariff headlines (days–weeks, high volatility); short-term — inventory destocking 3–9 months; long-term — structural substitution by lab-grown over 2–5 years forcing permanent lower price realizations (Anglo’s $2.3bn impairment signals market repricing).

Trade implications: Favor selective exposure to well-capitalised miners with diversified metals (Anglo American AAL.L) and avoid/short pure-play downstream jewelers exposed to Indian tariffs and Chinese demand (Signet SIG). Use options around the April tariff window (buy straddles on retail names) and implement 6–12 month call spreads on miners to capture medium-term recovery while limiting downside. Hedge Africa sovereign/local-currency exposure via USD/ZAR options or reduce duration in BWP/NAD-denominated bonds.

Contrarian angles: Consensus views terminal demand destruction as inevitable; that may be overdone because producers are aggressively curbing supply (21–26m target) and inventories can normalize in 6–12 months — a >10% price snapback is plausible if tariffs are rolled back by April. Mispricings likely in diversified miners (value gap between Anglo and pure diamond names) and in short-dated options on retailers priced for permanent collapse rather than a policy-driven, transient shock.

Key Decisions for Investors

• Establish a 2–3% portfolio long in Anglo American (LSE:AAL) via a 12‑month call spread (buy 12‑month ~25% OTM call, sell ~60% OTM call) sized to risk no more than 2% of NAV; target +30% upside if diamond prices recover >10% within 12 months and impairment is re-rated.
• Initiate a 3% short or buy‑put-spread on Signet Jewelers (NYSE:SIG) — buy 3‑month 10% OTM put / sell 20% OTM put — as a bet on margin compression from tariffs and weak Chinese demand; set profit target -20% in 3–6 months, cut loss at -10%.
• Buy April–May 2026 straddles on a basket of jewelry retailers (use SIG and PNDORA.CO equivalents) ahead of potential tariff reversal; size small (~0.5% premium exposure) to capture a volatility spike if tariffs are announced/rolled back around April.
• Trim 10–20% exposure to Botswana/Namibia/South Africa local‑currency sovereign or corporate debt; hedge FX risk by buying 6–12 month USD/ZAR calls (10% OTM) sized to cover currency sensitivity if mining receipts fall >15% year‑on‑year.
• Deploy a tactical 1–2% capital bucket to buy miner equities (or miners' call spreads) on a confirmed inventory drawdown signal: rough sales growth turning positive for two consecutive months or rough-inventory/months-of-sales falling below 6 months (monitor monthly through June 2026).