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Gem Lab Certification

Gem Lab Certification


For over 40 years, the Indian Gemmological Institute – Gem Testing Laboratory (IGI-GTL) has been deploying its unbiased gemological testing services to buyers and the gem and jewellery industry. The project was initiated in 1978, by the Gem & Jewellery Export Promotion Council.

Ever since its inception, IGI-GTL has been instrumental in offering guidance to numerous government agencies and gemmological training institutes. The pillars of this project are rooted in quality service and dissemination of knowledge regarding the authenticity of gemstones amongst people from the industry and buyers across the country.

The single-minded objective of IGI-GTL is to detect impurities and synthetics in gemstones so that a buyer is well aware of the possible risks before investing their money. To ensure authenticity, the lab is well equipped with advanced technological innovations like Diamond View, Fourier Transform Infrared Spectroscopy (FTIR), Ultra Violet-Visible-Near Infrared Spectroscopy (UV-VIS-NIR), DiaMension, Q.Check and Synthdetect.

Each report issued by IGI-GTL is carefully drafted after thorough expert analysis. The comprehensive report contains all details regarding the identification and diagnosed treatment of the gemstone.


GIA is a global leader when it comes to expert analysis of diamonds, coloured stones and pearls. Established in 1931, GIA is a public benefit, nonprofit institute that acts as a reliable source of knowledge, standards, and education in gems and jewellery.
GIA enables the buyer to invest wisely by through research, education, and unbiased gem grading and analysis. The foundation strives to protect the buyer from purchasing unoriginal, synthetic and impure gemstones by setting global quality standards that require strict compliance.

A world leader and a name to reckon with in the gem and jewellery industry, GIA’s path-breaking discoveries augment our understanding of gemstones of the world.


GRS was founded way back in 1996 by Dr. Adolf Peretti to focus on the identification and characterization of top-quality gemstones from newly discovered mine as well as the ascertainment of origin for gems derived from classic mining regions. Going further, GRS also focuses on the identification of gemstone imitations, synthetics and new gem treatments. In addition to these areas of research, they also specialize in colour grading and gemstone colour branding, such as the well-known GRS-type Pigeon’s Blood and GRS –type Royal Blue.

With an expansive presence across the globe, GRS is committed to the highest degree of excellence in the field of gemological research. They have worked in collaboration with leading Swiss universities to devise effective ways of determining the authenticity of gemstones, utilizing state-of-the-art analytical methods and latest gemmological research trends.
The expert labs of GRS, which are well-equipped with highly sophisticated technological equipment, undertake comprehensive measures to ensure the most trustworthy results.

Gübelin Gem Lab

Starting with a humble gemmological laboratory founded in 1923 to determine the authenticity of the stones used in Gübelin’s jewellery, Gubelin Gem Lab has evolved to become one of the most respected institutions of its kind worldwide.

The lab is an independent subsidiary of the Gübelin group that uses the latest scientific methodologies and state-of-the-art equipment to carry out its analyses. The in-depth analyses yield into highly credible gemmological reports, which have garnered the trust of famous auction houses, royal families, jewelers, gem traders, and collectors across the globe who are in search of unbiased, independent and trustworthy opinions on gems.

From the time of its inception almost a century ago till now, the Gübelin Gem Lab has never compromised on its analytical infrastructure, education, staff know-how as well as internal regulations and processes. The lab takes pride in its pursuit of setting a global benchmark of quality for gemstones from all parts of the world.
To eternalize these exceptional quality standards, the Gübelin family designed the Gübelin Gem Lab Seal.

The seal is famous stands as a quality hallmark outlining a set of guidelines that must be followed for it to be included on a gemmological document.