De Beers Shuts South Africa’s Largest Mine as Diamond Demand Fades

Sun Sep 06 2026 15:48:37 GMT+0000 (Coordinated Universal Time)

Diamond giant De Beers pauses its flagship mine for two years after consumers switch to lab‑grown stones, slashing jobs and profits.

De Beers will halt production at the Venetia mine in northern South Africa—a plant that accounts for over 40% of the country’s diamond output—for two years. Prices are falling as Chinese buyers buy less and cheaper artificial diamonds rise in popularity. The company plans to use the downtime to upgrade its infrastructure. With more than 4,000 workers at risk, the move highlights the fast‑shifting diamond market and the broader shift toward sustainable mining practices.

What Happened?

De Beers, the iconic diamond mining giant, has announced a two‑year shutdown of its flagship Venetia mine in the far north of South Africa. The mine supplies over 40% of the country’s diamond output and employs more than 4,000 people.

Why the Pause?

Prices across the industry are sinking because fewer consumers are buying natural diamonds, especially in China. At the same time, lab‑grown stones are cutting prices and offering ethical alternatives, leading to intense competition.

Company’s Plan

De Beers is using the break to streamline operations and upgrade infrastructure—aiming for boosted capacity when market conditions improve. Its parent company, Anglo American, is also exploring a pivot toward copper and other high‑growth areas.

Impact on Workers & Economy

The shutdown could lead to significant job losses in a sector that employs nearly half a million people and accounts for over 4% of South Africa’s GDP. Worker unions have warned about potential unemployment spikes.

Lab‑grown diamonds themselves are gaining traction as consumers voice ethical concerns about traditional mining practices. Some big firms, including De Beers, are producing their own inexpensive lab versions to meet demand.