An instrument
for a market of trust.
Assay Pro is an independent precision laboratory for gold, silver, platinum, and palladium. We serve mining cooperatives, jewellery manufacturers, dental laboratories, refiners, and institutional custodians — anyone whose next transaction depends on a number being right.
We were founded on a straightforward observation: too many precious-metals decisions still get made on a handshake. So we built a lab where the workflow is instrumented end-to-end, the certificates are cryptographically signed, and the custody log is available to the client in real time.
The result is boring in the best possible way. Samples arrive, get measured, get reported, and get settled — on the same day, at the same tolerance, every time.
Three principles, published openly.
Transparency
Our methods, calibration schedules, and measurement tolerances are published — not hidden behind a house style. If we can't defend the number, we don't issue it.
Redundancy
Three orthogonal assay methods on every batch. When XRF, fire assay, and ICP-MS converge on the same result, uncertainty stops being an argument.
Repeatability
Every furnace, balance, and spectrometer is calibrated on a fixed schedule against certified reference materials. Consistency is a discipline, not an aspiration.
We refine metal — not reputation risk.
Every gram entering the lab is screened against LBMA Responsible Gold guidance and OECD due diligence. We accept recycled bullion, verified secondary scrap, and doré from accredited mining cooperatives — and we say no when the paperwork doesn't hold up.
The lab is audited annually against ISO 17025 principles, our waste streams are certified, and our tailings are recovered by partner refiners. Clean metal, clean process, clean paperwork.
Book Your Assay
Know exactly
what it's worth.
Bring in a sample — bar, scrap, granules, or jewellery — and leave with a signed spectral report and a same-day settlement offer, benchmarked to the live LBMA fix.