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Why Gem Certifications?

Gemstone Lab certificates issued by the following Trusted Laboratories, which are the best in the business.

Gem Certifications from the Best

GRS GemResearch Swisslab

Gem Research SwissLab – GRS, is a private independent gemmological research laboratory, founded in 1996 by Dr Adolf Peretti. GRS research has focused principally on the identification and characterization of high-quality gemstones from newly discovered mines, as well as determination of origin for gems derived from classic mining regions. The area of research also focuses on the identification of gemstone imitations, synthetics and gemmologists. Their final area of expertise specializes in colour grading and gemstone colour branding.

Their research laboratories located in key global sites are equipped with the latest most sophisticated technology to recognize and identify today’s advanced gemstone treatments. In addition to this, they have a group of dynamic, internationally recognized university professors, scientists and gemmologists.

  • Private independent gemological research laboratory
  • Internationally recognized laboratory reports
  • Founded in 1996
  • www.gemresearch.ch
  • First scientific system of diamond cutting.
  • Transparent business conduct
  • ISO 9001:2008
  • www.gia.edu

Gemological Institute Of America

The Gemmological Institute of America (GIA) is a non-profit institute dedicated to research and education in the field of gemmology and jewellery arts. Founded in 1931, GIA’s mission is to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality. The institute does so through research, gem identification and diamond grading services and a variety of educational programs.

In the 1940s, GIA established the “4 Cs” (Cut, Carat, Clarity and Colour) and the International Diamond Grading System™. GIA has been serving the Indian gem and jewellery industry since 2004 when it first opened its Mumbai campus, and four years later, a State-of-the-Art grading laboratory in the same location.


Gübelin (est. 1854) began when a young man opened up a watch shop in Lucerne, Switzerland. However, it wasn’t until the 1920s when they opened up a gem testing laboratory to test the jewels they put in the watches. The company grew bigger and got handed over to younger generations, who stuck to their traditions and kept the integrity of the company throughout the years. With an experience of over 160 years, Gübelin is known for its authenticity, competence and inspiration in their refined skills of horology and gemology.

  • Internationally recognized laboratory reports
  • Founded in 2008

C. Dunaigre

With a long history of significant experience, Christian Dunaigre Consulting (est. April 2008) is one of the best independent and accomplished gem certification laboratories. Having knowledge and experience gained from studying and working at renowned Gem institutes like AIGS and Gübelin, Mr. Dunaigre set up C. Dunaigre Consulting in Switzerland. C. Dunaigre is known for their intricate analysis and grading of gemstones, which makes them the highest level of gemstone certification providers to gemstone and jewellery traders.

International Gemological Institute

IGI is the largest international laboratory for diamond and colored gemstone certification. It is the only international certification lab which is controlled by single central governing body that sticks to one internationally acknowledged system for diamond and colored gemstone grading. Apart from the standard 4 C’s which stands for Color, Clarity, Cut and Carat Weight. IGI certificates adds another “C”: Confidence which every consumer should have while buying diamonds, or colored gemstones.

We, at GemPundit take immense pride in having a vast catalog of IGI certified gemstones to boost your confidence while you make a purchase.

  • Largest organization of its kind
  • Identification Reports
  • www.igi.org

Indian Gemological Institute

The Indian Gemmological Institute (IGI-GTL-GJEPC) (est. 1978) is known for rendering unprejudiced gem related testing and research to the Gem and Jewellery Industry as well as the public, along with providing guidance in research and development to government agencies and gemmology schools, through public write-ups and articles. Each report issued by IGI-GTL are concluded through thorough expert analysis, submitted for testing, as per the scientific tests performed with Gemmological equipment. At IGI-GTL, quality is of utmost importance which is why their lab is frequently upgraded with technological innovations.

Shri Zaveri Mahajan Zaverat &
Moti Tolai Charitable Trust

Shri Zaveri Mahajan Moti Testing Center, located in Mumbai is a recognized name in the city, popular for their amazing collection of jewellery, which ranges among various different styles and trends. They also certify pearls, tested and examined by their experts. With a rich experience in the gems and jewellery business, they have become a commemorated name for remarkable designs and collections, as well as a trusted source for gem certification.

  • Largest organization of its kind
  • First laboratory to issue Jewelry
  • Identification Reports

Internatinal Testing Laboratory
Gems & Jewellery

International Testing Lab Gems and Jewellery (ISO 9001:2008 Certified) is known for its sophisticated methods of gem testing. The gems are tested by two highly experienced and qualified gemologists separately and a correlated report is issued. These advanced techniques and methods ensure a strong and scientifically backed up certification to the gems. ITLGJ has prepared and maintains a standardized nomenclature in accordance to the CIBJO standards and their certification holds high significance.

Iskon Gem Testing Laboratory,

ISKON Gem Testing Laboratory, Jaipur is an independent certification organization dedicated to the trust of the customers through their certifications. Their tests and testing methods are known to be fair, accurate and equal, in accordance to the standards of top laboratories around the world. They boast a team of highly experienced and qualified gemologists who are trained by their experts conforming to their work tradition and standards.

JBN Gem Testing Lab

JBN Gem Testing Lab: JBN Gem Testing Lab is a mercantile company with a team of skilled gemologists and each member understands the worth of precious minerals in the global trade magnification. They are the proud owners of an exclusive and voluminous gem specialised library, filled with books about gems and jewellery. JBN Gem Testing Lab has been serving the industry by certifying gemstones in the course of exports and imports, when the need occurs. They have been protecting the integrity of the Indian Gem Industry, thereby increasing the rate of exports from the country.


AGR Gem Testing Lab: Advance Gem Research Laboratory International (AGRL) is an ISO 9001:2015 Certified Testing Laboratory based in Jaipur, Rajasthan that is known to provide genuine services in the respective fields of Gemstone Identification, Gemstone Treatment Identification, Gemstone Origin Identification, Diamond Grading, and Jewelry Diamond Grading. Advance Gemstone Research Laboratory is known to maintain the true authenticity in their certification as well as paying necessary heed to International standards in all of their Laboratory services.

  • Transparent business conduct
  • Identification Reports