Our Services
Diamond Testing & Screening Services
At SGI Gemstone Lab, we offer comprehensive diamond testing and screening services to ensure the authenticity and quality of every diamond submitted for examination. With state-of-the-art instruments and a team of experienced gemologists, SGI provides accurate identification and verification for both natural and lab-grown (CVD/HPHT) diamonds.
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.
Mounted Jewelry Testing
We also offer testing for mounted diamonds in finished jewelry, ensuring authenticity without damaging the piece.
Diamond Certification Reports
Every tested diamond is accompanied by an official SGI Diamond Report, detailing its identification, grading results, and detection outcome.
Customer Services
At SGI Gemstone Lab, we believe that exceptional service is the foundation of lasting trust. Since our establishment in 2010, we have been committed to providing every client — whether a jeweler, trader, or individual customer — with a smooth, transparent, and professional experience.
Personalized Assistance
Our experienced gemologists and support staff guide clients through every step of the testing and certification process — from gemstone submission to report delivery. We ensure that each inquiry is handled with attention and care.
Fast & Reliable Reporting
We understand the importance of timely results. SGI offers quick turnaround times without compromising on testing accuracy, helping our clients meet business and customer deadlines efficiently.
Transparent Communication
We maintain open and honest communication with our clients. Every report and result is clearly explained to ensure full understanding of gemstone authenticity and grading details.
Confidential Handling
All client information and gemstone details are treated with strict confidentiality. Our lab follows professional ethics to ensure your trust and privacy are never compromised.
After-Sales Support
SGI offers continuous support even after the report has been issued. Our team is available to clarify findings, reverify gemstones, or assist with additional certifications upon request.
Corporate & Bulk Services
We provide specialized gemstone and diamond testing solutions for jewelry manufacturers, exporters, and retail brands, offering volume-based testing and certification packages.
Gemstone Services
At SGI Gemstone Lab, we specialize in accurate, scientific, and reliable gemstone testing. Established in 2010 and located in Johri Bazar, Jaipur, SGI is recognized as one of India’s trusted names in gemological identification and certification. Our lab is equipped with advanced instruments and managed by certified gemologists who ensure every report meets international testing standards.
Gemstone Identification
We determine the type, species, and variety of gemstones, verifying whether a gem is natural, synthetic, or imitation. Each stone is analyzed using advanced gemological instruments under standard testing conditions.
Treatment Detection
Our experts detect and document any treatments or enhancements applied to gemstones — such as heat, oil, diffusion, or dye — ensuring transparency for both buyers and sellers.
Origin Indication
Where possible, SGI provides geological origin analysis, helping clients understand the potential source or region of the gemstone.
Gemstone Certification Reports
Every gemstone tested is accompanied by an authentic SGI Gemological Report, which includes details of color, shape, cut, measurements, optical properties, treatment status, and identification results.
Our reports are designed to be clear, scientific, and tamper-proof.
Mounted Gem Testing
We also provide testing for mounted gemstones in jewelry, allowing verification without removing the stones from their settings.
Precious & Semi-Precious Gem Testing
- Emerald, Ruby, Sapphire Diamond and Moissanite
- Tanzanite, Tourmaline, Topaz
- Amethyst, Citrine, Peridot, Garnet, and many more
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