GDJ · the open standard
One integration. The whole trade.
The diamond and jewelry trade has never had a shared language. We published one — and we are building it to be the rails the whole industry runs on.
A founder answers — usually the same day.
The network, at a glance
Everyone, one language.
Stores, suppliers, labs, workshops, carriers and the apps in front of them — all speaking the same standard, with a registry that says who is who.
Write it once
Every message is signed
It won't break under you
Nobody can raise the rent
Built to be the rails the whole trade runs on — not a private network you rent from us.
Who builds on it
Three kinds of builder.
If your software touches a stone, a piece, or the money for either, it belongs on the network.
Store & counter software
Supplier, lab & workshop systems
Buying apps & tools
How access works
Everyone passes the same suite.
Tell us what you're building. If it fits, you get the full specification and a sandbox — then you prove it against the conformance suite like everyone else on the network.
Request access.
The specification, the sandbox, and the conformance suite are handed over after we’ve talked — a short conversation, not a procurement cycle.
- You keep your own product, your own customers, your own roadmap.
- No fee to implement the standard. No exclusivity, ever.
- Certified implementations are listed on the network registry.
An industry deserves one set of rails.
We are building them in the open, and we would rather you built on them than around them.