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S & T - Earth Science
(Gemology)
Please email with comments and suggestions
about this page.
Gemological Institute of America
Billing itself as the college of the gem business, the GIA sponsors educational programs
in all spheres of gemology, from the basics of gemstones to grading and cutting of
diamonds and other precious stones.
Gemology & Lapidary Pages
A huge resource that details everything you might want to know about gemstones, from
exploration and mining to cutting and setting the finished product. Serious collectors
should look for grading and pricing guides.
Gemology World
Primarily intended as a center for communications and data exchanges between gemmologists,
the site has also developed as a resource for consumers and the merely fascinated.
GeoGem Gemology Overview
Whether you are a jeweler or a consumer, you will find some useful information on this
overview of precious stones. Study the characteristics of gemstones, explore the world of
crystallography and gain insight into why you pay what you pay for gems.
International Colored Gemstone Association
Take a peek inside the wonderful world of gems. With feature articles, gorgeous pictures,
a library of gemstone information and a look at the industry in general, this is a
definite bookmark.
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