De Beers, the global leader in natural diamond production, has announced a two‑year pause at its flagship Venetia field in northern South Africa. The mine contributed more than a single‑flat 40 % of the country’s diamond output and created jobs for over 4,000 workers. The stoppage follows a sharp drop in diamond sales worldwide, driven by cheaper lab‑grown stones and a decline in affluent consumer spending, particularly in China.

The decision comes after the International Diamond Consultants’ rough‑diamond price index cut by nearly half since 2022, indicating a persistent weaker market for the rock’s top‑tier gemstones. De Beers says it will use the downtime to modernise infrastructure, increase operational capacity and reduce costs in anticipation of a possible rebound.

From the workforce perspective, unions warned that the shutdown could trigger significant layoffs in South Africa’s already fragile mining sector, which employs close to half a million people and contributes more than 4 % to the national GDP. Workers will likely face wage cuts or a reduction in hours until production resumes.

Meanwhile, Anglo American, which now holds majority ownership of De Beers, is reportedly exploring divestment of the diamond arm to focus on the burgeoning copper market, a recovery amplified by the recent AI boom that fuels data‑center demand.

Labor and environmental concerns are resurfacing as consumers question the ethics of mined diamonds. Many buyers now prefer lab‑grown stones that offer a lower carbon footprint and cheaper price. Yet De Beers has entered that market with its own lab‑grown collection to protect market share.

The company’s legacy is intertwined with colonial history. Founded by Cecil Rhodes, De Beers symbolizes the dispossession and segregation that characterized South Africa’s past. The Rhodes name is now a touchstone for debates on the decolonisation of institutions that retain his legacy.

With its shutdown, De Beers will remain on standby, ready to restart operations once market conditions stabilize. The move highlights broader industry uncertainty and the need for sustainable, diversified strategies in a rapidly changing gemstone market.