Our Story

In 1982, Richard Drucker introduced to the industry a colored gemstone pricing guide, now known as GemGuide. In 1985, wholesale diamond prices were added to the publication, making it the most comprehensive pricing guide in the industry. The publication, which is recognized as the industry leader for gem pricing and market information, is used for valuation and information in more than 40 countries by jewelers, appraisers and as a reference in legal cases involving valuation. Gemworld staff has appeared as expert witness and has acted as consultants in several gemstone pricing legal cases. Gemworld has also developed educational classes and workshops that have been taught in several countries. Gemworld has hosted five gemological conferences drawing speakers and attendees from all over the world. As independent consultants, Gemworld offers products and services to the trade as well as performing appraisals for consumers and the trade. The team at Gemworld includes four graduate gemologists, of which three have won the prestigious Excellence in Gemology industry award from the Accredited Gemologists Association. Many other awards and accolades have been bestowed on the Gemworld team of experts.

1982

Richard Drucker creates the first GemGuide and quickly gains worldwide industry attention.

1985

Wholesale diamond prices were added to the publication, making it the most comprehensive pricing guide in the industry.

1999

GemGuide appraisal desktop software introduced.

2008

Gemworld hosts the first of five international gem conferences bringing together top industry speakers and attendees worldwide.

2011

Development and teaching of first of several Gemworld hands-on workshops, within a few years to include corundum, emeralds, pearls and colored stone grading.

2014

Gemworld co-develops the World of Color communication system based on Munsell, which is quickly adapted and taught in several countries and incorporated into all Gemworld products.

2017

Introduces a sophisticated pricing app for mobile and desktop that includes a comprehensive grading system for gems, interactive pricing in international currencies, and much more.

2019

GemGuide Appraisal Software release of its most advance version incorporating a professional template for appraisers.

Team

Richard B. Drucker GIA GG, FGA (Hon)

President

Stuart M. Robertson, GG

Vice President

Susan Drucker

Treasurer, Technical Support

Jennifer Santi, GG (GIA), CG (AGS)

Appraiser, Project Administrator

Bradley Rooks

Subscriptions & GemGuide Pricing App

Çiğdem Lüle, PhD, FGA, GG (GIA), DGA

Education Consultant

David L. Bucks, Vice-President Field Inventory Examinations

Kathleen Brucher

Marketing

Contact

Richard Drucker

President

1.847.657.0555 x 204

Stuart Robertson

Price Research & Consulting

1.847.657.0555 x 203

Cigdem Lule

Education Workshops

1.847.657.0555 x 207

Susan Drucker

Technical Support/Appraisal Software

Monday-Friday 9:00 am to 4:00 pm Central

1.847.657.0555 x 206

Jennifer Santi

Appraisal Appointments

1.847.657.0555 x205

Bradley Rooks

General information or Subscriptions

1.847.657.0555 x 201

General Support

1.847.657.0555 x 201

Address

2640 Patriot Blvd., Suite 240
Glenview, IL 60026
1.847.657.0555
1.847.657.0550 (fax)

Hours

Monday-Friday 9:00 am to 5:00 pm Central

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