About IIGL

After many experiments since 2004, the founders and managers of the organisation, Sri Surojit Banerjee and Sri Jaynarayan Singh, established IIGL in 2017 with detailed management and modern equipment, driven by a deep interest in the study of gems and jewellery and their results.

What began as a small gem-testing service grew into a full gemological laboratory. Finished jewellery, natural diamonds, coloured gems and rudraksha are tested and their reports verified. We have taken the lead in providing gemological training to professionals, students, shopkeepers, growers and the general public.

Our efficiency, integrity and ideas have earned your trust, and our colleagues and researchers continue to expand their experience and skills. The Institute of International Gemological Laboratory family thanks you for choosing us.

IIGL is a self-reliant, independent gemological laboratory equipped with the finest instruments and certified to ISO 9001:2015. Every report is issued only after the authenticity of the gem, rudraksha or diamond has been established.

Treatments that were once very hard to detect — moissanite, CVD, treated and glass-filled diamonds, and glass fillings, heating, treatment and colour filling in coloured stones — are today identified with UV, Vis, NIR and spectrometer equipment, and reported plainly.

Our aim is to reach ordinary people with gemological services at reasonable prices, to make customers aware and to connect educated people — because only then can the frauds in the gem trade be stopped.

Our gemological services are simple and genuinely helpful. Because our certification reports are reliable, you can turn to us before buying any gem, jewellery or diamond — backed by seventeen years of work that you are now a part of.

IIGL is known for exquisite detailing and precise assessment. We release thousands of reports every year, committed to proper analysis and accurate proof of authenticity for every customer.