TheGemSure

Verify a certificate

Every certified piece we sell carries a laboratory certificate. Enter its number here to see what we hold against it — and, where the laboratory publishes one, a link to check it with them directly rather than taking our word for it.

Usually at the top of the document, sometimes labelled “Report No.”

What the statuses mean

Checked against the lab
Someone here has looked this number up with the laboratory and it matched.
Not yet checked
The certificate is recorded against the piece, but we have not verified the number with the laboratory ourselves. We would rather say so than imply otherwise.
Could not be confirmed
We tried and the laboratory did not confirm it. If you are holding this certificate, please contact us — we want to know.

Cannot find your certificate? Get in touch with the number and we will look into it.