Independent, scientific certification, authentication and valuation of precious gemstones. Every NGL report carries a unique QR-verified identity — trusted by jewellers, traders and collectors.
From identification to valuation, every stone is examined with precision instruments and expert eyes.
Accurate determination of natural, synthetic or treated gemstones using advanced spectroscopy and microscopy.
Confirm origin and authenticity with detailed, tamper-proof certification you and your clients can trust.
Precise weight, dimension and quality grading to establish fair market value for every precious stone.
Professional certificates with a unique number and scannable QR code for instant online verification.
Refractive index, specific gravity, hardness and microscopic study — a complete scientific profile.
Recognised standards and consistent reports that hold value across markets and borders.
A spectrum of precious and semi-precious stones examined and certified in our laboratory.
We have no stake in buying or selling — only in accurate, honest reporting. Modern instruments and trained gemologists ensure consistent, reliable grading recognised across markets.
No stake in buying or selling — only accurate, honest reporting.
Every report is backed by a scannable code linking to its secure online record.
Modern instruments and trained gemologists ensure reliable grading.
Certificates respected by jewellers, traders and collectors.
Enter your certificate number exactly as printed (e.g. NGL/180626/116518) to open its official verification page.
Or scan the QR code printed on your certificate with any phone camera.
Have a gemstone to certify or a question about a report? We're here to help.
Sahjanand faliyu, Metpur, Khambhat, Gujarat - 388620
+91 8160697179
Pgpatel766@gmail.com
Mon – Sat: 10:00 AM – 7:00 PM Sunday: Closed