India's premier gemological laboratory. Scientific precision, instant verification, and internationally recognized reports.
Why SG&TL
From Navratna stones to high-value Kashmir sapphires, our laboratory is equipped for every gemstone that matters to the Indian market.
Raman spectroscopy, FTIR, UV-Vis-NIR, and EDXRF analysis to identify species, variety, and origin with laboratory precision.
Comprehensive disclosure of heat treatment, fracture filling, diffusion, dyeing, and irradiation — no hidden enhancements.
Geographic provenance analysis for premium stones. Kashmir, Burmese, Colombian, and Mozambique origins scientifically confirmed.
Every certificate has a unique QR code. Scan with any phone to instantly verify authenticity — anytime, anywhere.
Expert testing of all nine Navratna stones with reports that include astrological suitability alongside scientific data.
How It Works
From submission to certification, your gemstone is handled with care and analysed with precision.
Drop off your gemstone at our lab or use our secure courier pickup service across major Indian cities.
Our gemologists test using advanced spectroscopy, microscopy, and photoluminescence instruments.
Receive a tamper-proof report with unique ID, QR code, and full gemstone data within 10 Min.
Anyone can verify the certificate instantly on our website or by scanning the QR code.
Pricing
Competitive rates for individuals, jewellers, and trade partners.