GIA Knowledge Sessions Webinar - recorded live on April 23, 2020.
GIA field researchers visited 21 countries on 95 expeditions in the last decade, collecting more than 1 million carats of colored stone rough. That’s just part of the effort that goes into colored stone origin determination.
How do GIA experts determine sapphire, ruby, emerald and Paraíba tourmaline origin? How do advanced spectroscopic and luminescence techniques help unravel the mystery of where these gems are from? Senior manager of research, Aaron Palke, Ph.D., dives into the progress and promise of gemstone origin determination, and how traceability may be the next challenge GIA undertakes.
Read more of Dr. Aaron Palke's research:
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