Founded in 2019, Global Institute of Gemology (GIG) is a network of diamond certification and grading organizations headquartered in India. We are one of the fastest growing international testing networks. At the forefront of the industry, we are passionate about providing convenient service for our customers. GIG is committed to high standards and has the latest technology and qualified professionals.
At GIG, we take pride in offering a comprehensive range of diamond certification services that cater to all your needs in the world of fine jewelry.
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At GIG, we take pride in offering a comprehensive range of diamond certification services that cater to all your needs in the world of fine jewelry.
Unmatched quality assurance.
Precision diamond sorting for quality assurance
Ensuring quality and authenticity.
Precision marking for authenticity and security
Are you looking to start a career in the diamond industry? Our Diamond Grading Professional is the course for you. A specialist is someone who has mastered the art of diamonds with discipline and professionalism. People who can trade, buy and sell diamonds with confidence. GIG‘s Diamond Grading Professional program offers a diamond grading course based on the International Diamond Grading System, giving students the opportunity to learn more about diamonds, gain expertise in recognizing, valuing, and understanding diamonds, and providing an introduction to diamond testing.
Know MoreConsistent and easy to use detection device that screens for CVD and HPHT lab grown diamonds, and natural diamonds enabling a user to know about their nature of origin with confidence. It can screen loose stones and large jewellery pieces like necklace, ring, pendant and earring etc.
