I attended the GG course in residence at Carlsbad a few years ago.
The biggest asset there is their collection of You get to
view many more stones than would be possible on your own or by
Since I attended the course, their distance learning courses have
gone online, which is an excellant idea.
However, despite their large collection of stones, do not think that
you will leave with a totally comprehensive knowledge of gemstones.
Your real learning begins once you enter the trade. eg.- I found that
their course content about emeralds from Swat (Pakistan) and Panjsher
(Afghanistan) was almost non-existant, when I attended the course a
few years ago.
In a nutshell, GIA in residence GG program is an excellant
introduction to the field of Gemology, and I know of none better.
Saeed Motiwala, G.G.