Certificate verification
Verify a report directly with the lab
Every investment-grade stone we sell ships with an independent laboratory report. Use the form below to cross-check the report number on the lab's own verification portal — that's the authoritative source, we never host lab data ourselves.
Independent means independent
We only list reports from labs that accept third-party submissions — Gübelin, SSEF, GRS, GIA, AGL. We do not issue our own reports. Ever.
Public lookups
The top coloured-stone and diamond labs all publish a public verification page. No account needed — just the report number.
What you'll see
Most portals show the original grading results as a PDF scan or tabular summary. If the number is void or belongs to a different stone, the portal will tell you clearly.
TopGems is not affiliated with and does not operate any of the above laboratories. Links open the lab's official portal in a new tab. If a portal URL changes, please email us at support@topgems.com — we'll update this page.