UPDATE: Southern Africa is facing an urgent economic crisis as the rise of cheaper, lab-grown diamonds threatens the region’s diamond-dependent economies. Botswana, a nation historically buoyed by diamond revenues, has just launched a sovereign wealth fund to pave the way for a “more resilient, sustainable, and diversified future beyond diamonds,” as officials scramble to adapt.
The government of Botswana, which relies on diamonds for approximately 30 percent of its gross domestic product (GDP) and 80 percent of its exports, announced this initiative earlier this week. President Duma Boko is exploring various alternatives, including boosting luxury wildlife tourism, entering the medicinal cannabis market, and harnessing solar energy from Botswana’s abundant sunshine.
Economic experts highlight the severity of the situation. “If left unaddressed, there is a real risk of the situation becoming not just an economic challenge but a social time bomb,” President Boko warned in July. The International Monetary Fund (IMF) confirms that Botswana is already feeling the financial strain as foreign reserves deplete, forcing the government to accumulate debt.
Amid this turmoil, the diamond market is seeing dramatic shifts. The average price of a one-carat natural diamond has plummeted from a peak of $6,819 in May 2022 to $4,997 by December 2024, according to the World Diamond Council. The rapid expansion of the lab-diamond market has captured approximately 20 percent of the global market by value and up to 50 percent by volume in the US engagement ring segment as of 2025.
Neighboring countries like Angola, Namibia, and South Africa are also impacted, although not as severely as Botswana. Economist Brendon Verster from the Oxford Economics Africa think tank noted, “Diversification is essentially now or never.” To combat the downturn, countries including Botswana have pledged to allocate one percent of their annual diamond revenues to promote natural diamonds.
In a particularly alarming signal, global ratings agency S&P recently downgraded Botswana’s long-term ratings to “BBB” with a negative outlook due to the rising popularity of synthetic diamonds. In a further blow, Lesotho, which relies on diamonds for 10 percent of its $2 billion GDP, faces job cuts as its largest diamond mine, Letseng, announced plans to lay off 20 percent of its workforce due to “sustained pricing pressure.”
The economic repercussions are dire. Analysts warn that mine closures could heighten the risks of economic collapse in Lesotho, emphasizing the urgent need to explore alternative resources.
In a competitive landscape, diamond companies are adapting. De Beers is considering the potential of synthetic diamonds for high-tech applications while still promoting the story of responsibly sourced natural diamonds from Botswana. “We see a significant opportunity to engage consumers,” they stated.
As the market evolves, the stark contrast between natural and lab-grown diamonds is evident in retail environments. In Johannesburg, a natural yellow diamond priced at over $50,000 stands behind fortified gates, while a lab-grown diamond priced at just $115 goes unguarded nearby.
For Botswana’s Ministry of Minerals official Jacob Thamage, both types of diamonds can coexist, offering different value propositions to consumers. However, with the economic stakes so high, the urgency for Botswana and its neighbors to diversify and adapt is palpable.
As developments unfold, the world watches closely to see how these nations will navigate this challenging shift in the diamond industry and what strategies they will employ to secure their economic futures.
