Buyers in London, Antwerp and New York increasingly want to know where a stone came from before they’ll touch it. That demand is not new, but it has hardened into something closer to a market requirement over the past decade: documented origin, chain-of-custody records, a due-diligence statement confirming the stone wasn’t mined, cut or traded through a compromised supply chain. Gemstone certification and provenance verification in Africa now function as a genuine precondition for reaching premium markets which would be an unambiguous win for the continent’s producers, if the certification systems built to prove provenance were actually built with them in mind.
They mostly are not. Provenance verification, as currently structured across most of the coloured-gemstone trade, rewards exactly the producers who least need protecting — large, well-capitalised operations with in-house compliance staff, digital record-keeping, and the resources to navigate whatever documentation a buyer demands. It excludes, almost by design, the artisanal and small-scale operations that produce a substantial share of what actually comes out of the ground.
What Provenance Certification Actually Requires and Who Can Meet It
A credible provenance claim typically needs several things chained together: a documented point of extraction, a traceable chain of custody from mine to export, supporting paperwork at each stage a stone changes hands, and increasingly, a formal due-diligence statement addressing the specific risks a buyer’s jurisdiction cares about, conflict financing, forced labour, environmental harm, or, in the EU’s case, origin verification excluding sanctioned sources entirely.
Each of these steps assumes infrastructure that formal, industrial operations have and artisanal ones typically don’t. A licensed mining company can assign someone to compliance full-time. An artisanal miner working a claim with no formal tenure, the exact situation described in the Kimberley Process’s own history of conflict-diamond certification, and in Africa’s artisanal mining sector more broadly today has no realistic way to generate the documentation a certification scheme requires, even when the stone itself was mined and sold entirely legitimately.
The result is a familiar pattern: certification does not verify ethical production so much as it verifies administrative capacity. A stone from a well-documented industrial mine clears the gate. A stone from an artisanal operation working entirely lawfully, but without the paperwork trail to prove it, does not regardless of the actual conditions under which either stone was produced.
H2: The Kimberley Process Precedent, Applied Beyond Diamonds
This is not a hypothetical risk. It is precisely what happened, and continues to happen, inside the Kimberley Process itself. The scheme was built to keep conflict diamonds out of legitimate trade by requiring government-issued certificates for rough-diamond shipments an effective mechanism for its stated purpose, and one that pushed conflict stones toward genuine commercial exclusion. But the certification burden it created falls disproportionately on smaller, informal producers who were never the intended target. The Kimberley Process’s own reform discussions have repeatedly acknowledged the need for stronger internal controls specifically over artisanal and alluvial diamond production, an implicit admission that the core certification model was never built around how artisanal producers actually operate.
Coloured gemstones are now heading toward the same structure without any of the multilateral institutional apparatus diamonds eventually got. There is no Kimberley-Process-equivalent for tanzanite, ruby, emerald or sapphire, no shared certification standard, no peer review, no coordinated body setting common rules. What exists instead is a patchwork of buyer-specific due-diligence requirements, each jurisdiction and each major purchaser setting its own bar, with no coordination and no accommodation for what a small African producer can realistically supply. Where the Kimberley Process at least represents one flawed system trying to solve this problem collectively, the coloured-gemstone trade currently has several uncoordinated systems solving it individually and none of them were designed with artisanal producers in the room.
Who Gets Excluded, and What It Costs Them
The practical consequence is a two-tier market forming beneath the language of “ethical sourcing.” Producers who can supply full documentation reach premium buyers and command the prices that come with verified provenance. Producers who cannot not because their stones are compromised, but because they lack the administrative infrastructure to prove otherwise are pushed toward buyers who don’t ask, typically at lower prices and with less negotiating leverage, or excluded from the higher-value end of the market entirely.
This inverts the stated purpose of the entire system. Provenance certification exists, ostensibly, to protect vulnerable producers and communities from being undercut by an opaque, exploitative supply chain. In practice, as currently structured, it can do the opposite: it protects buyers from reputational risk, rewards the producers who already had the resources to compete, and leaves the most vulnerable artisanal operations further from the premium market than they were before certification became the industry norm.
What a Certification System Built for African Producers Would Require
- Tiered documentation standards: a verification pathway scaled to what an artisanal cooperative can realistically produce, distinct from the documentation expected of an industrial concession, rather than one uniform standard that only industrial operations can meet.
- Cooperative-level certification: allowing artisanal miners organised into cooperatives to certify collectively, sharing the administrative burden and cost of compliance rather than requiring each individual miner to build a paper trail alone.
- Locally accessible verification infrastructure: certification bodies and documentation processes physically and administratively reachable from mining regions, not centralised in capital cities or, worse, outside the producing country entirely.
- Investment in the underlying records, not just the certificate: geological records, licensing data, and cooperative registration are the actual foundation a credible provenance claim rests on; certification schemes that skip straight to demanding a finished due-diligence statement are asking producers to document infrastructure that was never built to support them.
- A shared standard, not a patchwork: coordinated certification recognised across major buying markets, so a producer who successfully certifies once doesn’t have to repeat the process for every individual buyer’s separate requirements.
Certification and gateway governance are not inherently hostile to African producers: the argument here is not against provenance verification itself. The argument is that a system built without deliberate attention to who can actually access it will keep functioning as a filter that favours capital over legitimacy, exactly as earlier iterations of diamond certification did before reform efforts began addressing artisanal inclusion directly. Getting this right for coloured gemstones, before the patchwork hardens into permanent practice, is one of the more urgent legal-infrastructure gaps in Africa’s gemstone economy today.
Africa Jewellery & Gemstone Law is Fashion Law Institute Africa’s initiative addressing the full legal landscape of Africa’s gemstone and jewellery industry, including certification and provenance frameworks that work for artisanal and small-scale producers. Get involved at gemstones@thefashionlawinstitute.org.