De Beers Suspends Operations at South Africa’s Biggest Diamond Mine

De Beers has announced it will suspend production at its Venetia mine, the country’s leading diamond extraction site, for two years. The pause comes as demand for natural diamonds has dropped sharply, especially in China, and the market faces stiff competition from cheaper lab‑grown gems.

Venetia accounts for more than 40% of South Africa’s diamond output and employs over 4,000 people. In a statement, De Beers said the decision was made to cut costs and streamline operations amid a depressed global market. The company will use the downtime to upgrade infrastructure, aiming for higher capacity and improved efficiency when it reopens.

The shutdown occurs against a backdrop of urgency among miners’ unions, warning that job losses could ripple throughout the nation’s mining industry, which supports almost half a million workers and contributes more than 4% to the national GDP.

De Beers is owned by Anglo American, which is reportedly looking to shift focus toward copper after the boom in AI technology. The company has begun producing its own lab‑grown diamonds, positioning itself to compete on price while maintaining its brand legacy.

Industry analysts note that the rough‑diamond price index has nearly halved since 2022, reflecting a broader loss of confidence in natural gem markets. While lab‑grown diamonds surge in popularity among ethically minded consumers, established players like De Beers are also entering the sector, offering a cheaper alternative.