Independent gemstone identification, jewellery appraisal and diamond grading from a laboratory built on rigorous testing and transparent, verifiable reporting.
Instantly check any IGJI certificate's authenticity - no login needed.
Genuine IGJI Report
From loose gemstones to finished jewellery, every piece is examined using standard gemmological instruments and methodology before a report is issued.
Precise identification of natural, synthetic and treated gemstones using refractometry, spectroscopy and standard gemmological testing.
Detailed appraisal of finished jewellery pieces covering metal, stone setting, weight and overall craftsmanship.
Grading of diamonds on the 4Cs - cut, colour, clarity and carat weight - against internationally recognised standards.
Every report carries a unique report number and a scannable QR code, so its authenticity can be verified online at any time.
Every part of our process is designed around one goal: a report you and your customers can rely on without question.
We have no commercial stake in any item we test - every finding is ours alone.
Every step, from intake to final report, follows a documented quality management system.
Every certificate is independently checkable online in seconds, no account needed.
Findings are examined and cross-checked by our team before any report is released.
Every submission follows the same disciplined process, designed to remove bias and capture every measurable property with laboratory precision.
Item received, photographed and logged against a unique report number.
Initial visual and physical assessment by our gemologists.
Refractometry, spectroscopy and other standard gemmological tests performed.
Findings independently reviewed and approved before a report is finalised.
Report issued with a unique number and QR code, instantly verifiable online.
A glimpse of the gemstones and jewellery that pass through our laboratory every day.
Confirming a certificate's authenticity takes seconds, not paperwork.
Scan the QR code on your certificate, or enter its report number on our verify page.
Our system checks the number directly against the original laboratory record.
See the certificate's confirmed details on screen - genuine, and independently checkable.
Scan the QR code printed on your certificate, or go to our Verify Report page and enter the report number shown on the document.
Yes. We have no commercial interest in any item submitted for testing - our findings reflect our laboratory's own examination alone.
It means our laboratory follows a documented quality management system across every stage of testing, so results are consistent and repeatable.
Double-check the number for typos first. If it still isn't found, contact us directly and our team will help confirm your certificate.
QR codes are printed on certificates issued from 2026 onward. Older reports can still be verified by report number on our Verify Report page.
Verify the authenticity of any IGJI certificate instantly using its report number.
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