An Afternoon with Gary Roskin, GIA GG, FGA

This interactive session combines hands-on gemstone examination with a practical discussion of laboratory reports, treatments and treatment identification, mounted-stone limitations, and current market realities.

Attendees will examine natural and synthetic diamonds, natural colored stones, and common synthetics using field tools including magnification, polariscope, spectroscope, and ultraviolet light.

Along the way, we’ll discuss what gemologists can realistically determine in everyday working conditions — and where laboratory analysis becomes essential.

Designed for all levels of experience, from beginning students to advanced gemologists, this afternoon offers a chance to sharpen observation skills, explore real-world gemological questions, and enjoy time networking with fellow GIA Alumni.

What to Bring:

If you have any of the following equipment and can, please bring it along. If not some will be available to share: Microscope, Loupe, Polariscope, Spectroscope and Ultraviolet Light.

Sample gemstones will be available for testing.

Cost for Program including a Light Lunch:

$20.00 Membership fee - Become a Member includes $10 discount on all 2026 programs

$45.00 Program Ticket for GIA/AGS Alumni Collective Ohio Chapter Members

$55.00 Program Ticket for Non-Members

About Gary Roskin:

Gary Roskin is a graduate gemologist and FGA, educator, author, and trade journalist whose career has spanned almost 50 years, including laboratory gemology, education, publishing, and international trade leadership. He served as Assistant to the Director of the GIA Gem Trade Lab in Los Angeles and later taught gemology at both GIA and the Fashion Institute of Technology in New York. From the late 90’s and for most of the 2000’s, Roskin was Senior Gemstone Editor for JCK Magazine and later CEO of the International Colored Gemstone Association. He is the author of Photo Masters for Diamond Grading and today publishes the Roskin Gem News Report, an independent industry newsletter and online magazine read by thousands of jewelers, dealers, and appraisers worldwide. A frequent speaker for professional and educational organizations, he has presented programs for GIA and GIA Alumni chapters, AGS Conclaves and Guilds, appraisal associations including NAJA, ISA, ASA, and JVA, and institutions such as the Cleveland Museum of Natural History. In recognition of his contributions to gemological education and the trade, he received the Antonio C. Bonanno Award for Excellence in Gemology from the Accredited Gemologists Association.

Info: President: Kiran Khaitan 330-622-1377
Vice President: Pam Chester
Treasurer: Amy Mickelson 216-239-1491
Secretary: Kate Peck
AGS Guild: Morgann Grampp 440-442-7280 Bluestone Trading

Know what’s Happening Next — before everyone else does.

Get App

Host or Publisher GIA Alumni Collective Ohio Columbus Chapter