About Us

J K Diamonds Institute of Gems & Jewelry® (JKDIGJ) is a renowned institute pioneering in Gems & Jewelry education for almost three decades Mr. Kirit Ajmera, Founder of JKDIGJ, born in Burma (Mandalay) in a Jain family, started his career in diamond market in 1976 with trading and jewelry business.

In 1987, during the progressive year of the diamond market, several people asked him about a suitable place to learn diamond grading. There was no suitable place that provided practical training. Inspired by the interest of the people, he launched courses of Polished and Rough Diamond Grading as per international standards in 1989 at J K Building, Opera House.

India's Pioneer Institute for Practical Training

With unparalleled credentials, several jewelers across India have enrolled for courses at JKDIGJ. Several students have, in fact, turned to the booming Entrepreneurial market joining their own brands directly after completing their courses at JKDIGJ such as BN Jewellers, Siroya Jewellers (Dubai), Surana Jewellers of Jaipur, Mukti Gold, Vanaji Kesaji / Shah Chain, Vijayraj & Sons/Chandrika Jewellers, among others

More than 30 owners of India International Jewellery Show (‘IIJS’) participants and Sightholder are also part of this esteemed list of Alumni members. In fact, students with market experience ranging between 2 – 30 years have also enrolled for skill enhancement and upgrade themselves with the latest developments.

There exists numerous professional opportunities for students such as diamond merchant, diamond manufacturer, Grader, jewelry design related careers, jewelry manufacturer, retailer, etc. Our Graduates have been placed at Rapaport, Harry Winston, Tanishq, TBZ, Kalyan Jewellers, Gitanjali, Bhima Jewellers – to name a few.


Our Process

High Quality Practical Training since 1989
Individual attention provided to every student
Result oriented training system and not just a stamped certificate
Practical exposure to nearly 5K ct. of rough & polished gemstones
Almost double grading system compared to International standards
Create your own design studio on completion of the Jewelry Design course

Why Choose JK ?

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Real Market
Time Experience



Lifetime Learning Access


Innovative Tech AR/VR


Upgrade Your Career Now

With decades of proven experience, our team is prepared to help you achieve your goals, and beyond.
micro scoping emerald

Awards & Achievements

Best Institute of India Award
National Jewellery Award
Award for Best Institute in Gems & Jewelry Education by Tv9 & Aaj Tak

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Industry Oriented Practical Diploma Courses