Secure Verification
Each report is secured with a unique 4-digit code, ensuring only authorized access.
We are a full-service gemological laboratory
Our team of expert gemologists, analysts, and support staff are dedicated professionals who take pride in precision, integrity, and world-class certification services.
Precision. Integrity. Trust.
A gemological laboratory dedicated to quality and expertise
At GGL, we combine scientific accuracy with decades of gemological experience to deliver trusted certification services. Our commitment to clarity, transparency, and excellence ensures every gemstone is tested with the highest standards.
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Instant Results
Get immediate feedback on your report's authenticity status.
Detailed Validation
Receive comprehensive information about your report's verification.
Gem Testing You Can Trust
We offer the expertise and tools your gemstones deserve
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Certified gem testing and grading reports
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Advanced equipment for precise gemstone analysis
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Authenticity verification and reports
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Trusted by jewellers, traders, and collectors worldwide
We deliver trusted certification for gems and jewelry
Ensure every gemstone you own or trade is accurately tested and certified
with our expert gemological services.
Gemstone Identification
We identify natural, synthetic, and treated gemstones using advanced instruments and skilled gemologists.
Diamond Jewelry Certification
Comprehensive evaluation and certification for diamond-studded jewelry, ensuring authenticity, clarity, and craftsmanship.
Grading & Certification
We provide clear, reliable gem grading reports — trusted by traders, jewellers, and consumers worldwide.
Your trust is our reputation
Gemstone testing and certification you can rely on
At GGL, we help jewelers, traders, and collectors protect their investments with accurate gemstone identification and reliable certification. A gemstone without trusted documentation loses its true value that's where we come in.
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Get in Touch with Our Gemology Experts
Whether you need gemstone certification, expert consultation, or lab services,
our experienced team is here to assist you with precision and professionalism.
Get in touch we're here to help you certify with confidence
Have questions about gemstone or jewelry certification?
Reach out to our expert team today. At GGL, we're dedicated to providing clarity, accuracy, and trusted service.
Our Locations
Geneve International Gems Lab (Thailand) Co. Ltd.981, Room No. 5, Silom Road, Silom Subdistrict,
Bang Rak District, Bangkok 10500
Give Us A Call
+ 66 2 2355 911
Help Desk
contact@genevegemslab.com
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