IIGJ Lab is a project by GJEPC, is the unified identity formed by bringing together two of India’s most established gem and jewellery testing facilities, now operating as a single, stronger entity with centres in Delhi and Jaipur. Backed by decades of well-established processes, IIGJ Lab has evolved into a trusted authority for reports of coloured gemstones, diamonds, and jewellery. With advanced, state-of-the-art technology infrastructure and experienced gemmologists, the lab delivers accurate, unbiased, and globally aligned reports. Serving both domestic and international clients, IIGJ Lab stands committed to precision, consistency, and trust in every report it provides.
Established in 1966 by the Ministry of Commerce & Industry, the GJEPC is the apex body driving India’s gem and jewellery exports. Representing 11,000+ members, it bridges the gap between industry and government through policy advocacy and infrastructure support. From promoting “Brand India” at global trade shows like IIJS to enforcing ethical standards via the Kimberley Process, GJEPC fosters sustainable growth through specialized training at IIGJ and essential workforce welfare schemes.
Promoting Brand India in Global Markets
GJEPC actively promotes India as a global hub for diamonds, gemstones, and jewellery exports through:
GJEPC acts as a bridge between the industry and key government bodies such as the Ministry of Commerce & Industry, Ministry of Finance, DGFT, and other regulatory authorities.
GJEPC ensures ethical practices and transparency in the diamond trade by implementing the Kimberley Process Certification Scheme in India as the designated nodal agency.
To nurture talent and strengthen the industry workforce, GJEPC operates training institutes across major cities including- Mumbai, Delhi, Surat, Jaipur, Varanasi, Udupi.
GJEPC supports MSMEs and industry growth through:
GJEPC prioritizes the welfare of industry professionals by offering health insurance through the Swasthya Ratna Scheme, ensuring financial security and well-being for employees of member companies.
Committed to social responsibility, GJEPC actively contributes to community welfare through impactful initiatives:
About IIJS Bharat Shows
GJEPC organizes 5 shows in India and 1 in Saudi Arabia. IIJS Bharat Premiere is the oldest jewellery exhibition, with the first edition inaugurated in the 1980s. The show witnesses 2100+ exhibitors and 50,000+ visitors. IIJS Signature in Mumbai and IIJS Bharat Tritiya in Bengaluru join the Premiere show to make IIJS Bharat one of the biggest exhibitions in Asia.
About IIJS Bharat Expo – New Delhi 2026 – Where India’s Jewellery Brilliance Meets the Capital
A New Chapter in India’s Jewellery Trade
A prestigious addition to the renowned IIJS portfolio by Gem & Jewellery Export Promotion Council (GJEPC).
Strategically hosted in New Delhi, the capital of India, this international jewellery exhibition is designed to be a global sourcing hub, bringing together India’s finest jewellery manufacturers and global buyers, importers, and trade professionals from key international markets.
IIJS Bharat Expo 2026 will serve as a powerful platform to:
Gem Testing Laboratory (GTL), Jaipur was established on 29th August 1972 to serve the growing needs of the Indian gem & jewellery industry.
Revamp of services and systems. Official launch of professional certification courses to develop skilled gemmologists and educate the industry.
Introduction of Lab Information Circular to share gemmological updates with the industry.
GTL celebrates its Silver Jubilee — marking 25 years of dedicated service to the gem & jewellery industry.
Introduction of the first infrared spectrometer for advanced gemstone analysis. Master's Diploma in Gemmology launched in affiliation with university.
Detection of fissure filling in emerald — reporting the type of fissure filling in emerald for the first time.
Introduction of portable X-ray fluorescence spectrometer for elemental analysis of gemstones.
Launched online report verification allowing clients to verify testing reports digitally. Lab Information Circular goes online, offering free access to research and updates.
"Understanding Rough Gemstones" — a comprehensive guide to identifying rough gemstones, published by GTL staff.
GTL's Gagan Choudhary awarded the prestigious Antonio C. Bonanno Award at the International Gemological Symposium.
GTL undergoes significant technological upgrade to meet international standards. UV-VIS-NIR and Imaging FTIR spectrometers installed for precise gemstone testing.
Introduction of Diamond Grading Service — expanding GTL's expertise and catering to the diamond sector.
Manak Choudhary writes "Gems and Rocks" in Hindi, making gemmological knowledge accessible to a wider Indian audience.
Gagan Choudhary granted Fellowship status at The Gemmological Conference (GCC) — the oldest conference of its kind.
Moved to a 5,000 sq. ft. laboratory in Sitapura, Jaipur. Launched diamond screening service to detect lab-grown diamonds and safeguard the natural diamond supply chain.
GTL merged with Indian Gemmological Institute–GTL Delhi, forming IIGJ Research & Laboratories Centre (IIGJ-RLC). Advanced FTIR and LA-ICPMS installed — a first for any Indian gem lab.
Launch of Emerald Origin Certification. Celebrating 50 years of leadership in gem testing and research — marking half a century of excellence.
Launch of Ruby Origin Certification — extending GTL's origin determination expertise to one of the world's most precious gemstones.
Launch of Pearl Testing Service to address the authenticity and identification of pearls in the market.
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To set the benchmark for trust and accuracy in gem and jewellery testing and analysis by combining advanced scientific technology, internationally accredited gemmological standards, and the expertise of highly skilled professionals. IIGJ Lab is committed to empowering the industry with authentic reports, research-driven insights, and reliable testing services to support sustainable industry growth.
To be a globally trusted centre of excellence in gemmological testing, reporting, and research – setting benchmarks in innovation and international quality standards, while reinforcing India’s leadership in the global gem and jewellery industry.
The foundation was set on 12th August 1972 under the Convenorship of (Late) Padmashri Khailshanker Durlabhji, founder Chairman of the Gem & Jewellery Export Promotion Council (GJEPC).Today, it stands as one of the world’s most respected laboratories, providing trusted gemmological services to a global clientele.
During its formative years, the laboratory established its reputation through gemstone testing, identification, and continuous research. It prioritised both the examination of individual stones and the development of advanced methodologies to identify emerging gem materials, synthetics, and treatments as the industry evolved. The results of R&D are shared through participating in conferences and publications in various trade and gemmological journals.
The Jaipur facility operates under strict scientific guidelines to ensure the authenticity of gemstones and the disclosure of treatments. By combining state-of-the-art analytical techniques with expert data interpretation, the lab maintains the highest standards of integrity, preserving public trust in the gem and jewellery trade.
With time, this strong foundation evolved into the IIGJ Research & Laboratories Centre (RLC). The combination of GTL and IIGJ RLC reflected not only an expansion in services but also a broader vision, where decades of experience, scientific progress, and trained technical expertise came together to support the growing needs of the global gem and jewellery industry.
Today, IIGJ Lab represents the unified legacy of its origin and its growth into a modern research hub. Backed by the GJEPC, it continues to serve as a cornerstone of expertise and reliability for the industry.
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