Accredited Gemstone Testing Lab SGI AuthenticityGuaranteed
About Us
SGI Gemstone Lab
Founded in 2010, SGI (Sametrue Gemological Identification) is a trusted and reputed gemstone testing laboratory located in the heart of Johri Bazar, Jaipur – the gemstone capital of India. With over a decade of expertise in gemstone identification and certification, SGI has earned recognition for its commitment to accuracy, integrity, and scientific excellence.
- Natural and synthetic gemstones
- Diamonds and colored stones
- Precious and semi-precious gems
- Treated or enhanced stones
Why Choose SGI Labs
Established in 2010 in Johri Bazar, Jaipur, SGI (Sametrue Gemological Identification) has become a trusted name in gemstone and diamond testing, known for its accuracy, integrity, and professional excellence.
Advanced Technology
With over 15 years of expertise, SGI has earned the confidence of jewelers, gemstone traders, manufacturers, and collectors across India and abroad.
Trusted Experience
Our lab is equipped with modern gemological instruments such as refractometers, spectrometers, UV-Vis and FTIR systems, and diamond detection devices (for CVD/HPHT screening) — ensuring precise and reliable results.
Certified Gemologists
All testing and grading are conducted by qualified gemologists trained in international gemological standards, ensuring accuracy and authenticity in every identification.
Our Services
Efficient And Accurate
Diamond Identification
We determine whether a diamond is natural, lab-grown, or synthetic, using advanced spectroscopic and optical analysis. Each result is supported by precise documentation and visual proof.
Diamond Screening (CVD/HPHT Detection)
We determine whether a diamond is natural, lab-grown, or synthetic, using advanced spectroscopic and optical analysis. Each result is supported by precise documentation and visual proof.
Diamond Grading
SGI provides grading based on the 4Cs – Cut, Color, Clarity, and Carat Weight, following international standards similar to GIA and IGI, giving clients confidence in the quality and value of their diamond.
Our Testimonials
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How We Work
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Our Newsletters
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Blog & Article
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