Advanced gemstone testing, scientific analysis, certification, grading and secure online PVC verification system.
Certificates Issued
Verification Accuracy
Online Verification
Advanced gemstone identification and secure laboratory authentication services.
GIG is a pioneer in the colour gemmological laboratory in India to issue country-of-origin reports. Additionally, we're in Kolkata to quantify colour stone quality in a clear and comparative manner in addition to our position of leadership in gemstone documentation. GIG has extensive experience in consumer protection programs.
The Laboratory is equipped with state-of-the-art instrumentation, and applies standard gemmological, as well as advanced analytical, techniques to each determination it makes.
GIG is an independent Gemological Laboratory with state of the art technology & expertise. GIG has a team of qualified and professional Gemmologists, Diamond Graders & Jewellery experts.
So, whenever you buy a gemstone, diamond or jewellery; always insist on GIG Laboratory Reports.
Advanced gemstone testing including RI, SG, hardness analysis
Professional gemstone grading reports with authenticity verification
Premium PVC gemstone authentication cards with QR verification
Enter certificate details to display authenticated gemstone certificate
