India’s Trusted Gem Testing & Laboratory Certification
Scientific gemstone testing using Reflective Index, Hardness, Optic Character & Magnification analysis. 100% accurate & verified reports
India’s Trusted Gem Testing Lab
Scientific gemstone testing with Reflective Index, Hardness, Optic Character & Magnification. 100% accurate, verified reports.
Why People Trust VGTLC
We provide accurate and scientific gemstone testing with advanced laboratory methods.
Govt. Registered Laboratory
We are a Government-registered gem testing laboratory providing verified and certified gemstone reports trusted across India.
Scientific Gem Testing
We use Reflective Index, Hardness, Optic Character & Magnification to ensure accurate and scientific gemstone identification.
Reliable & Accurate Reports
Every gemstone is tested under strict procedures, ensuring 100% authentic, transparent and reliable certifications.
Experienced Gemologists
Our lab is run by certified and highly trained gem experts with years of professional testing experience.
Why People Trust VGTLC
We provide accurate and scientific gemstone testing with advanced laboratory methods.
Govt. Registered Laboratory
We are a Government-registered gem testing laboratory providing verified and certified gemstone reports trusted across India.
Scientific Gem Testing
We use Reflective Index, Hardness, Optic Character & Magnification to ensure accurate and scientific gemstone identification.
Reliable & Accurate Reports
Every gemstone is tested under strict procedures, ensuring 100% authentic, transparent and reliable certifications.
Experienced Gemologists
Our lab is run by certified and highly trained gem experts with years of professional testing experience.
Services We Offer
We provide a wide range of scientific gemstone testing services with complete accuracy and transparency.
Precious Gemstone Verification
Scientific testing of all precious and semi-precious gemstones to confirm originality, treatment, and authenticity
Diamond Clarity & Originality Check
Advanced lab examination to verify natural, lab-grown, and synthetic diamonds with accurate clarity and structure analysis.
Rudraksha Mukhi Validation
Authenticity testing for all Rudraksha beads, ensuring natural origin, correct mukhi count, and genuine structure.
Pearl & Coral Testing
Professional identification of natural, cultured, and imitation pearls along with detailed testing of Red Coral (Moonga).
Healing Stones Authentication
Verification of popular crystals like Amethyst, Citrine, Rose Quartz, and other healing stones for true mineral authenticity.
Certificate Verification Service
Check and confirm the authenticity of gemstone certificates issued by our laboratory.
Services We Offer
We provide a wide range of scientific gemstone testing services with complete accuracy and transparency.
Precious Gemstone Verification
Scientific testing of all precious and semi-precious gemstones to confirm originality, treatment, and authenticity
Diamond Clarity & Originality Check
Advanced lab examination to verify natural, lab-grown, and synthetic diamonds with accurate clarity and structure analysis.
Rudraksha Mukhi Validation
Authenticity testing for all Rudraksha beads, ensuring natural origin, correct mukhi count, and genuine structure.
Pearl & Coral Testing
Professional identification of natural, cultured, and imitation pearls along with detailed testing of Red Coral (Moonga).
Healing Stones Authentication
Verification of popular crystals like Amethyst, Citrine, Rose Quartz, and other healing stones for true mineral authenticity.
Certificate Verification Service
Check and confirm the authenticity of gemstone certificates issued by our laboratory.
Gemstone Testing Methods & Instruments
We follow internationally accepted gemological testing standards using advanced instruments to ensure 100% accurate and reliable results.
Testing Methods
Optical Character Examination
We check the gemstone's SR, DR or AGG nature to differentiate natural vs synthetic stones.
Refractive Index Measurement
Using a Refractometer, we measure RI to identify gemstones with high accuracy.
10x–60x Magnification Analysis
Microscopic examination reveals inclusions, treatments, fractures, and internal growth.
Hardness & Surface Examination
Checks physical characteristics to distinguish natural, synthetic and imitation stones.
Instruments We Use
Refractometer
Measures refractive index (RI) for accurate gemstone identification.
Gemological Microscope (10x–60x)
Used for inclusion analysis, surface examination, and treatment detection.
Polariscope
Determines optical character (SR/DR/AGG) and identifies strain patterns.
Dichroscope
Used to observe pleochroism and colour variations in gemstones.
About Valorem Gem Testing & Laboratory Certification (VGTLC)
Valorem Gem Testing & Laboratory Certification (VGTLC) is a Government-registered Gem Testing Laboratory established in 2005.
We provide scientific identification of gemstones using Refractive Index, Hardness, Optic Character, and Magnification analysis.
Our testing standards follow internationally accepted gemological procedures, trusted by jewellers, astrologers, crystal sellers, and gemstone buyers across India.
Quick Certificate Verification
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