GIA Conclave Session Spotlights
Friday, January 3, 2020
We're kicking off this year's Conclave Session Spotlights by highlighting sessions presented by our Education Sponsor, GIA. The first session discusses the color-causing factors in natural diamonds, the next will take attendees on a microscopic adventure of gemstones, and the third covers the basics of jewelry forensics.
The Causes of Color in Natural Colored Diamonds
Sally Magana, GIA
Colored diamonds have long fascinated both consumers and gemologists. In this session, gain valuable insight on GIA’s ongoing research on diamond color and the color-causing factors in natural diamonds. You will also get an in-depth look at the major color groups for diamond (green, blue, pink, fancy white/black, and yellow) in GIA’s extensive database, which summarizes research results and the causes of color in these valuable and rare stones.
Microscopic Exploration of Gemstones
Nathan Renfro, GIA
The microscope is the most powerful gemological instrument available to the gemologist. As such, a significant amount of gemological information is preserved in the microscopic world of gems that is easily revealed with this instrument. Prepare to be taken on a microscopic adventure and explore the secret interiors and surfaces of a wide variety of gem materials. Features that can be observed under low-power magnification with standard lighting conditions will be covered, in addition to higher-magnification features using more advanced microscope techniques. Additional technical information on gemological lighting, photomicrography, and microscopy techniques will also be presented.
Jewelry Forensics Basics for the Appraiser
Al Gilbertson, GIA
While jewelry appraisers go through a process to identify, analyze, and assess the quality and nature of an item, is it comprehensive and systematic? Many know only certain aspects of manufacturing and are only able to recognize a narrow range of certain specific make traces. GIA has a framework that will guide you in identifying areas where you need to gain more exposure. Through this lecture and hands-on session, you will learn “jewelry forensics” basics, including how to identify hand-fabricated components, cast components, CAD/CAM manufactured components, and cast-in-place gemstones.