The Indian Gemmological Institute – Gem Testing Laboratory (IGI-GTL), Delhi is a project of The Gem & Jewellery Export Promotion Council (GJEPC; sponsored by The Ministry of Commerce & Industry, Govt. of India). Since its inception in 1978, in over a period of 40 years, IGI-GTL, Delhi is rendering its unbiased gemmological testing services to general public and gem & jewellery industry. IGI-GTL, Delhi also offers guidance to various government agencies and gemmological training Institutions.

IGI-GTL, Delhi shares R&D with the Gem & Jewellery Industry and general public through the write ups and articles for knowledge enhancement of Industry and laymen.

IGI-GTL, Delhi believes in quality service, so keeps upgrading the lab with technological innovation adaptation as an ongoing process.

Nature earth is still not wholly discovered, new deposits and new gemstones keeps coming into existence. Not only in nature, but in trade also different kind of synthetics and treatments also keeps developing as the technology is developing with every passing second. IGI-GTL, Delhi keeps working in the aspect of detection of such discoveries and inventions, so that a laymen can get possible disclosure about the gems they are investing into.

Along with the basic Gemmological instruments like Microscope, Refractometer, Polariscope, Dicroscope, Spectroscope, U.V.Lamps, Chelsea Filter, etc, IGI-GTL, Delhi is well equipped with advance instruments like Diamond View, Fourier Transform Infrared Spectroscopy (FTIR), Ultra Violet-Visible-Near Infrared Spectroscopy (UV-VIS-NIR), Diamension, Diamond Screening equipment like Q.Check and Synthdetect.

Each report issued by IGI-GTL, Delhi are concluded on the basis of thorough expert analysis of stone/jewellery submitted for testing, as per the scientific tests performed with Gemmological equipment.

Both Identification and diagnosed treatment are mentioned on the report with the stone’s photograph.

(NORTHERN REGION) administrating IGI-GTL, Delhi

Regional Chairman

Mr. Ashok Seth (Seth Jewellers)


Mrs. Renu Sharma (Rajwarah Jewellers Pvt. Ltd.)


Mr. Bhupesh Mahajan (Vogue Crafts & Designs Pvt. Ltd.)


Mr. Nitin Gupta (Jewel Creatons)

Permanent Invitee

Mr. D.K. Aggarwal (SMC Comtrade Ltd.)

Mr. Suresh Kumar Sharma (SK Enterprise)

Mr. Vishan Kumar Soni (Soneez)

Ms. Suman Bindal (Vimal Diamonds)

Mr. Priyadarshi Ashok (Om Shree Sai Interanational)