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Event Calendar

Thursday, February 25, 2021

WJA Chicago | Colored Gemstone Saturation and Pricing: The Factors with Richard Drucker

Start Date: 2/25/2021 6:00 PM CST
End Date: 2/25/2021 8:00 PM CST

Venue Name: Zoom

Organization Name: WJA |Chicago

Olivia Zale
Phone: (561) 706-0885

Join the Chicago Chapter for a dazzling presentation about Colored Gemstone Pricing by Richard Drucker!

We will kick off the event at 6:00 pm with a pre-presentation Mix N Mingle, and Mr. Drucker will begin his talk at 6:30.

Colored Gemstone Saturation and Pricing—The Factors


Analyzing colored gemstones is not just the “4 Cs.” Color is the most important C of course and it is about saturation, windowing, extinction, and more. Richard will focus on this C but also talk about some interesting new developments and how labs are influencing this C, making it harder, not easier to interpret and sell or appraise.

Richard Drucker, GIA GG is the president of Gemworld International, Inc. in Glenview, Illinois. His credentials include: Graduate Gemologist of the Gemological Institute of America; Honorary Fellow of the Gemmological Association of Great Britain; Senior Member of the National Association of Jewelry Appraisers; Senior Gemologist, Accredited Gemologists Association. 

As a third generation in the jewelry industry, he began a pricing publication in 1982 now known as the GemGuide. This publication is used in more than 40 countries and is the industry leader in gem pricing and market information. In 2002, he became the owner of GemGuide Appraisal Software. In 2014 he co-developed the World of Color nomenclature and grading system for colored gemstones. In 2020, he collaborated with Jewelers Mutual Insurance to develop appraisal software for retail jewelers powered by Gemworld.

In 2006, Drucker was bestowed the Antonio C. Bonanno Excellence in Gemology industry award. In 2012 he was awarded honorary fellowship in the Gemmological Association of Great Britain (FGA). In 2019 he was awarded the Diamond Award from the Canadian Gemmological Association. Drucker now serves as publisher, appraiser, consultant, lecturer, and author. He has hosted five international gemological conferences brining gemologists, jewelers and appraisers together from around the world.