Видео ютуба по тегу Field Gemology

Wim Vertriest: “GIA’s Field Gemology Program and Origin Determination”
Wim Vertriest: “GIA’s Field Gemology Program and Origin Determination”
Gemmology Webinar about
Gemmology Webinar about "Field Gemology", with Vincent Pardieu as guest of Rui Galopim de Carvalho
Field Gemology in Northern Madagascar
Field Gemology in Northern Madagascar
Field Gemology Expedition Kenya
Field Gemology Expedition Kenya
Field Gemology Case
Field Gemology Case
Field Gemologist Equipment 1
Field Gemologist Equipment 1
Untold Stories from GIA Field Gemology Expeditions (Part II) | GIA Knowledge Sessions Webinar Series
Untold Stories from GIA Field Gemology Expeditions (Part II) | GIA Knowledge Sessions Webinar Series
Cambodia + Thailand Field Gemology Expedition 2017
Cambodia + Thailand Field Gemology Expedition 2017
"Mining Rubies & Sapphires in Madagascar", a Field Gemology webinar with Nirina Rakotosaona
"River to Ring" a Field Gemology Talk webinar with Chris Hood.
«From Follow the Zebra to Follow a dream», a gemology webinar with Philippe Brunot
«From Follow the Zebra to Follow a dream», a gemology webinar with Philippe Brunot
"The Gem Industry in Vietnam", a Field Gemology webinar with Dr. Pham Van Long, PhD