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"AIGS Gem Tips" program - Free Gemology Webinars featuring Warren Boyd
AIGS Gem Tips program
"AIGS Gem Tips" program - Free Gemology Webinars featuring Vincent Pardieu
"AIGS Gem Tips" program - Free Gemology Webinars featuring Rui Galopim d Carvalho
"AIGS Gem Tips" program - Free Gemology Webinars featuring Gemewizard®
"AIGS Gem Tips" program - Free Gemology Webinars featuring Dr. Thomas Hainschwang
"AIGS Gem Tips" program - Free Gemology Webinars featuring Lutz Nasdala
"AIGS Gem Tips" program - Free Gemology Webinars featuring Peter Lyckberg
AIGS Gem Tips (FREE Webinar) - Luminescence of Gems featuring Dr. Emmanuel Fritsch
Warren Boyd
"Discover the oldest rubies in the World: Rubies from Greenland", a webinar by hosted by AIGS
Warren Boyd Shepherd, Graduation CFHS '13
