A jadeite certificate is a short document, but most buyers only look at two things: the word “natural” and the number. Here is the rest of it.
What each field tells you
| Field | What it means | What to check |
|---|---|---|
| Certificate number | Unique identifier issued by the lab | Matches the number printed on the report |
| Laboratory | Who performed the testing | You can look the lab up independently |
| Type | Treatment status (A / B / C) | Type A means untreated |
| Measurements | Dimensions recorded by the lab | Consistent with the listing |
| Weight | Mass at time of testing | Consistent with the listing |
| Issue date | When the stone was tested | Recent enough to be relevant |
Verifying a certificate in four steps
Find the number
It is usually printed on the face of the report and repeated in the corner of every page.
Look it up on our site
Enter it on the certificate page. We will show the laboratory, the issue date, and which of our stones it covers.
Cross-check on the lab's own site
Every serious laboratory offers its own lookup. If the two disagree, stop and ask us.
Compare the measurements
If the lab recorded 62.5 g and the listing says 58 g, that is a question worth asking before payment.