About us

The International Center of Gemological Studies (I.C.G.S) is a branch of C.G.S that was established by Eli Dori (G.G) in 1979. We are the most prestigious, affluent and respected gemological center in the Israeli Diamond Exchange Center and taught thousands of students that are working in the diamond industry worldwide.

We provide a comprehensive and intensive gemological courses, in an intimate, pleasant and patient environment, adapted and suitable for every student. Our courses are based on the study program of the “GIA-The Gemological Institute of America”.

Our unique method integrates both theoretical as well as practical aspects of grading and evaluating polished diamonds. Learn from world experts in gemology, with emphasis on practical, hands-on approach.

The team

Eli Dori

Eli Dori

B.A in economics and accounting from Tel-Aviv University, Graduated Gemologist (G.G.) outstandingly in residence of GIA in California (diamond and colored stones), writer of the book: “Gemology–The Diamond: grading & Evaluation”.

Hadas Dori Bar Moshe

Hadas Dori Bar Moshe

MBA from Tel-Aviv University, Graduated Gemologist in the Israeli Diamond Center since 1992, has over 28 years of experience in grading diamonds and teaching gemological courses.

Benny Poplicher

Benny Poplicher

Graduated Gemologist in the Israeli Diamond Center since 1995 and a member of the Israeli Diamond Exchange.
A wholesaler of diamonds all over the world, specializes in the U.S market

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