De Beers is preparing to suspend production at its Venetia diamond mine in South Africa for two years, a major operational decision that underscores the depth of the downturn in the global diamond market and creates another obstacle for parent company Anglo American as it seeks to divest its diamond business.
The planned suspension puts approximately 3,500 jobs at risk and significantly reduces activity at one of southern Africa’s most important diamond operations. Venetia accounts for roughly 10% of De Beers’ global production and about 40% of South Africa’s diamond output, making the decision significant for both the company and the country’s mining industry.
Diamond Price Collapse Forces Venetia Shutdown
The suspension comes after rough-diamond prices fell by approximately 50% from their 2022 peak. The downturn has been driven by weaker jewellery demand, particularly in China, while the rapid expansion of laboratory-grown diamonds has put additional pressure on prices in lower-value segments of the market.
De Beers has already responded with substantial cost reductions, removing approximately $100 million in annual overheads since the beginning of 2024. The Venetia suspension represents a much more direct response to the mismatch between production costs and prevailing diamond prices. Rather than continuing to operate the mine at reduced profitability, De Beers is prioritising cash preservation while waiting for market conditions to improve.
$2.2 Billion Investment Faces a New Test
The decision is particularly notable because Venetia recently underwent a major transformation from open-pit to underground mining. Approximately $2.2 billion was invested in the underground development, which was expected to support production through roughly 2045. Suspending operations only a relatively short time after that investment highlights the severity of the current market downturn.
For De Beers, keeping the resource underground rather than producing into a depressed market could preserve its long-term economic value. The strategy effectively sacrifices near-term production and employment in an effort to avoid generating additional losses while diamond prices remain weak. The approach also gives the company an opportunity to restart the operation if market conditions become more supportive.
Anglo American’s De Beers Exit Becomes Harder
The Venetia decision creates an additional complication for Anglo American’s planned sale of De Beers. Anglo American recorded another $2.3 billion impairment against its diamond business in February 2026. It was the third consecutive year in which the company recorded a writedown of more than $1 billion, reflecting the deterioration in the value of the diamond business.
A prospective buyer must now assess De Beers against a significantly weaker market backdrop, reduced production capacity and uncertain prospects for a sustained recovery in Chinese jewellery demand. The suspension could therefore reduce the attractiveness of the business at precisely the moment Anglo American needs to demonstrate that De Beers can command a credible valuation. Potential buyers will have to determine whether the current weakness represents a cyclical downturn that creates an eventual opportunity or a more structural change in the diamond industry.
Synthetic Diamonds Add to Industry Pressure
Reducing natural-diamond supply could eventually contribute to a tighter market and support prices. The Venetia suspension alone is unlikely to resolve the industry’s broader problems. Global inventories remain a concern, while laboratory-grown diamonds have permanently changed the competitive landscape in some jewellery segments. Synthetic stones can be produced at significantly lower prices and have increasingly gained acceptance among consumers seeking lower-cost alternatives.
This means supply reductions by major natural-diamond producers may provide only limited support unless consumer demand also improves. China remains particularly important. A sustained recovery in Chinese jewellery consumption would provide a major boost to the natural-diamond market, but continued weakness would prolong pressure on producers such as De Beers.
Venetia Becomes a Test of De Beers’ Long-Term Strategy
The suspension is therefore more than a temporary production adjustment. It demonstrates how diamond miners are being forced to adapt to a market in which high-cost production is increasingly difficult to justify. For De Beers, the priority is now to preserve liquidity and protect the long-term value of Venetia rather than maximise short-term output. For Anglo American, however, the move makes the planned disposal of De Beers more complicated.
A potential buyer is likely to demand a lower valuation or additional assurances about the company’s future cash generation. Anglo may consequently face either a reduced sale price or a longer process before it can complete the divestment. The immediate objective of the shutdown is therefore cash preservation rather than a rapid recovery in diamond prices. Until rough-diamond demand improves and the market absorbs excess supply, Venetia’s suspension is likely to remain a symbol of the structural pressure facing the natural-diamond industry.
