For three generations, Graig Jones Diamond Mining Co. has recovered the world's rarest stones through careful engineering, ethical sourcing, and a refusal to cut corners where it matters.
We operate across the full value chain, from geological survey through to graded, traceable output — holding every stage to the same standard we'd want applied to a stone bearing our name.
Exploration, extraction, sorting and grading sit under one roof, which means one chain of accountability from pit to parcel.
Every concession is reviewed by third-party auditors against Kimberley Process and RJC standards, with findings published in full.
We hire and train locally at every site, and reinvest a fixed share of concession revenue into the surrounding community.
Our geologists and mining engineers set the pace of every project — expansion follows the ground, not a growth target.
“We don't chase output. We chase a standard — one we'd be comfortable defending to the community living beside every pit we dig.”
Every stage of the business, from the ground to the boardroom.
Survey, extraction, sorting and grading — how a stone actually comes out of the ground.
02Autonomous haulage, satellite monitoring and a blockchain provenance ledger.
03Audited land rehabilitation, water recycling, and renewable site power.
04Seven concessions across three continents, each at its own stage.
05The engineers, geologists and operators setting the direction of every concession.
06Quarterly disclosures, production guidance, and governance filings.
07Updates from our concessions, our markets, and our communities.
08Global offices, investor relations, and a direct line to our leadership.