About Gemewizard

Gemewizard® is a pioneer in the development of digital color-based systems, which provide solutions for professionals involved in the fancy colored diamonds, colored stones and jewelry industries, enabling the analysis, description, communication, pricing and trading of color in gems. The suite of products developed by Gemewizard® is based on the company’s groundbreaking color communication technology called GemeSquare™, which has been endorsed by GIA® Education, and since 2006 has been incorporated into the GIA® curriculum.

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Gemewizard is the brainchild of Menahem Sevdermish, an internationally recognized authority on gem commercialization and gemstone processing. He began his research in the late 1990s into the development of a software-based solution for color communication and gem grading. Using the extensive data accumulated by the Gemological Center of Israel (headed by Sevdermish), initial tests were conducted to verify the colors of gems. A major breakthrough in his research occurred in 1998 when the core program of a color grading system began to take shape. He created a special patented system using thousands of gem images.

The system was designed to recreate an existing image of a gem of a certain shape and color as multiple images of this precise gem color, displaying the selected color in the 15 most common gem shapes. The resulting database contains more than 500,000 well-sorted color/shape combinations of digitally created gem images.


Gemewizard Inc. maintains an R&D center in Israel and a large sales and support center in the US.
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