Beyond the Kimberley Process: What Diamond Traceability Looks Like Today

If you have researched ethical diamonds, you will have met the phrase conflict free, usually alongside a mention of the Kimberley Process. It is a genuine achievement and a sensible floor. But it is a floor, not a ceiling, and a well-informed buyer today can ask for a great deal more. Here is what conflict free really covers, what it leaves out, and what modern diamond traceability actually looks like.

What the Kimberley Process actually does

Launched in 2003 after a global campaign against so-called blood diamonds, the Kimberley Process is an international certification scheme designed to stop the trade in rough diamonds that fund armed rebel movements against legitimate governments. It brought together governments, industry and civil society, and it genuinely reduced the flow of those stones into the market. That is a real and worthwhile achievement, and it deserves credit.

The catch is in the definition. The scheme uses a narrow meaning of conflict diamond: only rough stones financing rebel groups. That leaves a great deal outside its scope.

What it leaves out

Because the definition is so specific, the Kimberley Process says nothing about several things a thoughtful buyer might care about: the working conditions and pay of the people who mine the stones, abuses linked to governments rather than rebels, smuggling across borders, or anything that happens after a diamond is cut and polished, which is where most of a stone's life before it reaches a ring actually happens. A diamond can be entirely Kimberley-compliant and still have a story you would want to know more about. This is not a reason to distrust the scheme; it is a reason to ask for more on top of it.

What better traceability looks like today

The good news is that the tools available now go well beyond a single certificate. Between them, they let the industry, and increasingly the customer, follow a diamond much further along the chain:

• Chain-of-custody schemes track a diamond through each stage from mine to finished ring, with documentation at each handover.
• Laboratory origin reports from some laboratories and provenance programmes can provide origin information for eligible natural diamonds, depending on the stone and its supply route, and can confirm whether a stone is natural or lab-grown. Our page on certificates and grading reports explains what a report does and does not tell you.
• Blockchain platforms record a diamond's history in a tamper-resistant ledger, so its provenance can be verified rather than simply trusted.
• Lab-grown diamonds sidestep the mining question altogether, offering a mining-free origin for buyers who want it.

What you can ask for

You do not need to master any of this to buy well. You only need to ask two straightforward questions of any jeweller: can you show me documentation for this diamond, and what can you tell me about where it came from? A jeweller who takes provenance seriously will have an answer. For more on the questions worth asking, see our guide to five questions to ask any jeweller about sourcing.

How we approach it

Our diamonds come with appropriate documentation, and we are glad to explain what we know about the sourcing of any significant stone before you order. We do not claim to have solved a complex global supply chain, and we would be wary of anyone who did. What we can promise is transparency: if you want to know where a stone comes from, ask, and we will tell you what we know.

Frequently asked questions

What does conflict free actually mean?

Under the Kimberley Process, it means a rough diamond did not fund armed rebel movements against a government. It is a meaningful baseline but does not cover labour conditions, state-linked abuses or the cut-and-polish chain.

Is the Kimberley Process enough on its own?

No. A well-informed buyer can ask for more: chain-of-custody documentation, origin reporting, or a lab-grown stone that avoids mining entirely.

How can I check where a diamond came from?

Ask the jeweller for the stone's documentation and what they know of its origin. Laboratory origin reports and blockchain provenance platforms increasingly make this verifiable rather than a matter of trust.

Do lab-grown diamonds avoid these issues?

They avoid the mining question altogether, which appeals to buyers focused on origin. They are real diamonds, identical in appearance to natural ones, differing in how they were formed.