TGL LAB

TGL LAB is a professional gemstone testing and certification laboratory based in Ratnapura, Sri Lanka, dedicated to providing accurate, reliable, and independent gem identification services. Our mission is to promote transparency, trust, and authenticity in the global gemstone trade.

At TGL LAB, every gemstone is examined using advanced gemological instruments and scientific testing methods by qualified gemologists. We specialize in identifying and grading a wide range of gemstones including sapphires, rubies, spinels, alexandrites, garnets, topaz, tourmalines, and other natural and treated stones.

Each gemstone tested at TGL LAB comes with a detailed Gem Identification Report, which includes:

• Gem type and species
• Weight and dimensions
• Optical and physical properties
• Origin analysis (when possible)
• Treatment detection
• High-resolution photographs and security features

We follow international standards aligned with leading laboratories such as GIA, SSEF, and IGS, ensuring all reports meet the highest level of accuracy and credibility.

TGL LAB also offers specialized services including:

• Gemstone Authentication & Verification
• Treatment Detection & Enhancement Analysis
• Origin and Traceability Studies
• Custom Testing for Jewelers, Dealers, and Collectors

With a commitment to precision, ethics, and modern gem science, TGL LAB serves as a trusted partner to traders, jewelers, and gem enthusiasts across Sri Lanka and beyond.

Location :

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Mt Everest

Mt Everest