Canadian Institute of Gemology - Canadian laboratory with gem courses, news, gem library, books and gem instruments.

Gemological Institute of America - A nonprofit educational resource for the gem and jewelry industry.

The Image - Information about gemstone and mineral photography.

Gemfest - An Australian sapphire festival.

Gems And Precious Stones - An on-line gem and jewelry course at the University of Wisconsin-Madison.

Gems-and-Facets Mail List - Mailing list for gemstones, diamonds, gemology, faceting and gem trade shows.

Antique Jewelry Times - Extensive antique jewelry resource.

Orchid - Newsletter for jewelers from Thailand.

GoldLA.com - Gemstone and jewelry information resource.

Don Norris Mailing List - Mailing list for silversmithing and jewelry making for beginners and small shops.

Associated Mining Consultants - Technical papers for the mining industry.

Harold Weinstein Ltd. Canada's Gemmological Laboratory - Canadian gem lab.

Gemstone Forecaster Newsletters - Analyzes Burma ruby and sapphire, colored diamond, emerald and gemstone markets.

Gems and Cut Stones - Mineral Collecting - - The Mining Co. Guide to gemstone and mineral collecting.

Gem Fashion - Virtual community of jewelers, designers, gemologists or scientists. Site in both English and French.

Mineralogy & Gemology - Mineralogy and gemology site in France.

GemstoneLady's Mine - Scientific information about many varieties of gemstones.

Jewelry Trade Fairs.com - Research and communications tool for gem and jewelry trade events.

Tasa Graphics Earth Exchange - Earth sciences information.

Women in Mining - Mineral resources for teachers.

Texas Institute of Jewelry Technology - Gemology course.

Mineralogy Collections - Natural History Museum Mineralogy Department in England.

Austin Jewelry Appraisers - Appraiser in Texas.

CSIRO Minerals - Australia's Commonwealth Scientific and Industrial Research Organisation, Division of Minerals.

Birthstone Collection - Florida State University's birthstones under a microscope.

IUPUI Geology Department - Indiana University ~ Purdue University at Indianapolis Department of Geology.

E-Bench - Newsletter for bench jewelers.

South Carolina Gold Museum - Gold mining site.

Russian Gemological Server - Business, research and educational projects in the gemology and jewelry fields.

Esconi - Earth Science Club of Northern Illinois.

Minerals on the Internet - West Chester University mineral site.

Colgate University - Mineralogy Department.

The Opal Association - An information site on Australian Opals.

Earth Science - Earth Science program at Emporia State University.

Gem Association of Great Britain - Educational resource.

North Carolina Discoveries - Hiddenite information.

Northwest Federation of Mineralogical Societies - Rockhound Association.

A Gem of a Story Online: Archives - Smithsonian gem images.

FTC - Guides for jewelry and precious metals.

Winona State University - Geology Department.

University of Texas Gem Class - Gem and Mineral class at the University of Texas, Austin.

Nebraska State Geological Survey - Birthstone photos and data.

Caribbean Gemological Institute - Caribbean jewelers organization.

Colored Gemstones - A student web page on gemstones.

Gemsimport - International site with gem market information.

Collecting Rocks - USGS on collecting rocks.

American Museum of Natural History - American Museum of Natural History diamond information.