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tech 6 September 2026

South African Diamond Mines Closing: Weak Sales and Lab-Grown Stones Competition

South African diamond mines are shutting down due to declining sales and the rise of lab-grown stones. The industry must innovate to survive.

Article inspired by the original source
South African diamond mines are closing due to weak sales and lab-grown stones ↗ www.wsj.com

Introduction

South Africa, once known as one of the world's diamond capitals, is witnessing its mines closing at an alarming rate. The decline in natural diamond sales and the increasing competition from lab-grown stones are driving this downturn. In an uncertain economic context, the industry must reinvent its models to ensure a sustainable future.

Economic Context

Historically, South Africa dominated the global diamond market with giants like De Beers, contributing to Johannesburg's prosperity. In 2020, South Africa produced about 7.2 million carats, representing a significant share of the global market. However, rough diamond sales dropped by 30% between 2019 and 2022, according to Kimberley Process data.

The Rise of Lab-Grown Stones

Lab-grown diamonds are gaining popularity due to their lower cost and reduced environmental impact. In 2023, the global lab-grown diamond market was valued at $19.3 billion, with an expected annual growth of 9.4% through 2030. These stones offer an attractive alternative, especially for consumers concerned with ethics and the environment.

Socio-Economic Impact

The closure of mines has direct consequences on employment. About 7,000 jobs were lost in the South African mining sector in 2023. Local communities, often dependent on mines for their economic survival, are particularly affected by this transition. Local governments and businesses must collaborate to create new economic opportunities.

Necessary Innovations in the Sector

To survive, the South African diamond industry must adopt new technologies and business models. Automation and AI could play a crucial role in optimizing mining operations, reducing costs while improving efficiency. For instance, some mines are already using drones to map deposits more accurately.

Towards a More Sustainable Industry

Another transformation axis is sustainability. Modern consumers value transparency and ethics in their purchases. South African companies could leverage this trend by certifying their products and highlighting sustainable practices.

Conclusion

The closure of diamond mines in South Africa is a wake-up call for an industry that needs to reinvent itself. By adopting new technologies and focusing on sustainability, it can not only survive but thrive. Let's discuss your project in 15 minutes.

Sources

  • Kimberley Process Statistics
  • Market reports on lab-grown diamonds

Call to Action

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