By Donald Nyarota
A diamond may be forever. Its name, apparently, is negotiable.
The latest quarrel in the diamond industry is over whether diamonds made in factories should be called “lab-grown” or “synthetic”. The African Diamond Producers Association (ADPA) wants “synthetic” to become the exclusive international descriptor for diamonds produced through industrial processes, while natural diamonds retain the familiar 4Cs grading system and carat measurement.
There is also a push that the Kimberley Process publicly state its position on the terminology used to distinguish natural diamonds from diamonds produced through industrial processes.
A recent letter penned by Ahmed Bin Sulayem Executive Chairman and Chief Executive Officer of the Dubai Multi Commodities Centre (DMCC) signals this intent, because “because India, China and the United States, three of the most consequential jurisdictions in the production, manufacturing, retailing and consumption of these products, all recognise and use “laboratory-grown diamond” within their respective regulatory, technical or industry-association frameworks.”
For Africa’s diamond producers, like Zimbabwe, this is not merely semantics. It is about protecting the value of a natural resource that supports national economies.
This debate carries an additional and uncomfortable question: what exactly is play if the countries defend the value of natural diamonds? The answer cannot simply be a name.
It must be the value of the entire diamond economy, a value chain that remains under scrutiny over legacy oversights and illicit financial flows.
Zimbabwe’s Marange diamond fields were discovered in 2006 and rapidly became one of the world’s significant alluvial diamond deposits. Today, the country remains a natural-diamond producer, with the United States Geological Survey recording more than 5.2m carats of production worth about US$164m in 2024.
However the paradox of Marange has always been that extraordinary geological wealth has coexisted with extraordinary questions about transparency, accountability and community benefit.
Research by the Centre for Natural Resource Governance (CNRG) and the Kimberley Process Civil Society Coalition has documented how communities around Chiadzwa, Mukwada and Chipindirwe have remained poorly served despite the enormous value extracted from their land. The civil-society coalition noted that Marange generated US$124m from 4.2m carats in 2019, while communities still struggled with roads, water and access to basic services.
That history is not irrelevant to the laboratory-grown debate. It is the debate.
Zimbabwe’s diamond industry is now confronting a dramatically different market. State owned miner the Zimbabwe Consolidated Diamond Company (ZCDC) told parliament in 2026 that rough-diamond prices had fallen sharply from their post-pandemic peak. It stated that as a result Zimbabwe’s distinctive Marange stones were fetching roughly US$22–34 per carat, compared with around US$100 for better-quality rough from some other producers.
Diamond exports were worth about US$164m in 2024, down 46% year-on-year despite an increase in extraction volumes.
The pressure is not simply coming from consumers changing their minds about diamonds. Laboratory-grown stones are changing the economics of the market itself, leaving Zimbabwe with a difficult proposition.
If a natural diamond is to command a premium over a laboratory-grown diamond, Zimbabwe must be able to demonstrate why. Rarity alone may not be enough. Tradition may not be enough. And certainly, a regulatory decision to call one product “synthetic” and another “natural” will not be enough.
Zimbabwe’s strongest selling point should be that natural diamonds create value far beyond the stone itself.
That means employment. Export earnings. Government revenue. Local business opportunities. Community development. Environmental rehabilitation. And, crucially, a demonstrable share of mineral wealth reaching the people whose land produces it.
This is where Marange remains unfinished business. Even the ill-fated Community Share Ownership Trust (CSOT) remain an indictment on the government and how it has failed to provide a tangible community benefit sharing model.
CNRG’s recent work in Manicaland argues that communities have long been excluded from meaningful benefit-sharing despite the province’s enormous mineral wealth. A 2026 academic study similarly describes the Marange experience as one in which the adverse effects of alluvial diamond mining have outweighed the benefits for host communities.
There is therefore a danger in Africa’s current linguistic campaign.
If producers try to defend natural diamonds primarily by making laboratory-grown diamonds sound inferior, they risk avoiding the more difficult question: has the natural-diamond industry done enough to justify the premium it demands?
Zimbabwe cannot credibly answer that question with branding alone, it needs transparency and accountability, virtues it sorely lacks at the moment.
How many diamonds are produced? At what price? How much does the Treasury receive? What royalties are paid? What happens to the money? What do communities receive? How much land has been rehabilitated? What obligations do mining companies have to people displaced by extraction?
These are not peripheral questions, they are part of the product and indeed a part of the value chain.
A natural diamond should be able to carry a story that a laboratory cannot manufacture that its value is connected to a finite geological resource and that its extraction contributes visibly and fairly to the development of the country from which it came.
That would be a formidable competitive advantage, but it requires diamond producers like Zimbabwe to turn natural rarity into social value.
The alternative is worrying. If consumers are told that natural diamonds are better simply because they are natural, while communities in places such as Marange continue to question whether diamond wealth has transformed their lives, the industry’s narrative becomes increasingly difficult to defend.
There is also a broader economic lesson.
The global natural-diamond industry is under pressure. Natural diamond prices have fallen sharply while laboratory-grown diamonds have become dramatically cheaper. The consequences are already visible in southern Africa, where the downturn is threatening major mining operations and thousands of jobs.
It presents a dual battle, the first is in the marketplace, to convince consumers that natural diamonds possess qualities worth paying for.
The second is at home: ensuring that the economic value of those diamonds is distributed in a manner that gives citizens and mining communities a reason to defend the industry.
The second battle may ultimately determine the first. If African producers, like Zimbabwe. Angola and Botswana, want the world to believe that a natural diamond is worth more than a laboratory-grown one, it must demonstrate that the natural diamond value chain itself is worth more.
That means moving beyond the language of scarcity to the language of accountability.
Zimbabwe’s Marange has already taught the world that a resource can be extraordinarily valuable underground and yet fail to produce proportionate prosperity above it.
The next chapter of the diamond story should be different, and producers should not merely ask consumers to pay more for natural diamonds. It should give them a reason to.