Calcutta Gems Testing Center provides authentic gemstone certification you can trust. Every stone examined, every certificate verified.
Calcutta Gems Testing Center is a trusted name in the gemstone industry, dedicated to providing accurate and reliable gemstone certification. Based in the heart of Kolkata, we have been serving gem lovers, jewellers, and collectors for over a decade.
Our team of certified gemologists uses advanced testing equipment and time-honoured expertise to examine every stone that comes through our doors. When you receive a certificate from us, you hold a promise of truth in your hands.
We believe that trust isn't given, it's earned — one certificate, one customer, one gemstone at a time.
Every gemstone certificate comes with a unique QR code. Simply scan it to verify authenticity directly on our website — anytime, anywhere.
Our team consists of trained and certified professionals who bring years of hands-on experience in gemstone identification and grading.
From examination to certification, every step is documented and made available to you. No hidden processes, no compromises — just clear, honest results.
We use state-of-the-art gemological instruments for precise analysis, ensuring every detail about your gemstone is accurately recorded.
Your satisfaction and confidence matter most to us. We are always ready to answer your questions and guide you through the certification process.
Trusted by jewellers and gem collectors across Kolkata and beyond, our reputation has been built through years of consistent, reliable service.
Purchased a gemstone from us? Verify the authenticity of your certificate in three simple steps.
Find the QR code on your certificate and scan it with your phone camera.
You'll be taken to our verification page. Enter the unique secret code printed on your certificate.
Instantly view the complete digital copy of your gemstone certificate on screen.