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A fundamental rift in supply strategy is rewriting the dynamics of the African diamond trade, placing Botswana’s long-standing model of market discipline under direct pressure from a rapidly ascending Angola.
While Botswana has deliberately choked back its diamond output to defend sliding global prices, neighboring Angola has pushed production to record levels, capturing the crown as Africa’s second-largest diamond producer by value. According to data from the Kimberley Process, a global rough diamond regulator, Angola’s output jumped to 12 million carats in 2024, yielding an estimated $1.41 billion in value.
The divergence underscores a bold gamble by Botswana, which operates Debswana, a dominant joint venture with De Beers. In the face of tepid global demand and a bruising price war with synthetic alternatives, Gaborone chosen to leave gems in the ground rather than flood an already saturated market. Angola, via its state miner Endiama, has taken the opposite path, using massive output from its flagship Catoca and Luele mines to capture market share.
“Angola’s relative rise has more to do with a strategic curtailing of supply to meet demand by the Debswana JV, while Endiama has done the opposite,” said Paul Zimnisky, an independent diamond industry analyst. “I think Botswana’s approach is more sustainable than Angola’s.”
The Clash of Two Mining Models
Botswana’s production restraint comes at a critical juncture for the natural diamond sector, which is fighting to retain its luxury status against a tide of cheaper, lab-grown stones. Gaborone’s strategy leans heavily on preserving long-term asset value, whereas Angola’s newly reformed, post-civil war mining sector relies on high-volume kimberlite operations balanced by rare, premium alluvial discoveries.
Angola’s mix of production yields contrasting results, according to Zimnisky. The country’s kimberlite operations deliver high-volume, medium-quality goods, while its alluvial deposits produce some of the most exceptional diamonds in terms of size, quality, and colors. A prime example is the 170-carat pink “Lulo Rose” unearthed in Angola, highlighting the nation’s high-end potential.
Yet, turning over massive volume into a weak market carries significant systemic risks. The rise of synthetic alternatives has stripped the natural diamond market of its historical levers of control.
“With lab-grown diamonds, you can essentially produce whatever you want, whenever you want,” Zimnisky said. “The supply fundamentals are completely different with natural diamonds, so they need to be valued as such, and this needs to be properly conveyed to the consumer.”
The Battle for De Beers
The geographical shift in production is spilling over into a high-stakes corporate bidding war. With London-listed mining giant Anglo American Plc seeking a buyer for its 85% controlling stake in De Beers, Botswana which already holds the remaining 15% is seeking to anchor a pan-African coalition to take control of the luxury diamond house.
Angola has thrown its hat into the ring, submitting a bid via Endiama for a 20% to 30% stake in De Beers. The objective is to build a regional ownership model spanning Botswana, Namibia, South Africa, and Angola, which could act as a unified African diamond powerhouse.
The ultimate outcome hinges heavily on who secures ownership of De Beers and their commitment to driving long-term demand growth for natural stones. For both Botswana and Angola, gaining control is less about a simple asset purchase and more about accelerating economic independence. Both nations are moving aggressively to keep more profit within their borders by investing heavily in domestic cutting, polishing, and manufacturing facilities to create high-skill jobs.
Ultimately, the future of both African giants may rest on how effectively they can market the ethical and economic realities of natural mining to a skeptical new generation of buyers.
“Angola and Botswana will undoubtedly remain the primary diamond players in Africa, given their hosting of large resources,” Zimnisky noted. “However, I hope they place more emphasis on conveying their story to global diamond consumers going forward, especially as it pertains to the people that the industry positively impacts. If done properly, I think this would really distinguish the natural diamond product from lab-grown alternatives and make it significantly more appealing, especially with younger consumers.”
