Gemological Institute Of America | All About Gemstones - GIA
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
The Gemological Institute of America, GIA, is the world's foremost authority in gemology, diamond grading, jewelry education, gemology research, diamond and gemstone grading reports and laboratory services. Gemological Institute of America : Gemology Research and Education.
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CMU is a global research university known for its world-class, interdisciplinary programs: arts, business, computing, engineering, humanities, policy and science.
Information and educational services for everyone interested in gemstones. For gemologists, hobbyists, jewelers, lapidaries and everyone in between.
Your advisor on gemstones, birthstones and jewelry stores. Find all the information you need: reviews, buying guides, care tips, news and far more
ACS offers uniquely cut or rare, faceted, colored gemstones, designer cabochon gemstones and gemstone carvings for collectors and jewelry designers.
A non-commercial guide for people interested in the acquisition of fine alexandrite gemstones, one-off alexandite jewelry pieces or learning more about the history, gemology and valuation of alexandrite gemstones.
American Gem Society is comprised of the top jewelers in the United States and Canada. AGS also offers education on diamonds as well as other gemstones. Learn more at AmericanGemSociety.org.
Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,
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Gemlab provides diversified and broad range of products and services for the gem-jewelry industry: Gem Training, Gem Books, Gem Instruments, Treatment Equipment, Gem Sets, and more.
JIC.org is the consumer education arm of Jewelers of America and is an objective authority on fine jewelry and watches. JIC.org provides detailed information about fine jewelry and watches including: seasonal trends, care and cleaning, and savvy shopping tips.
Learn About Diamonds, Precious Gemstones, Jewelry, Colored Gem Grading & Basic Gemology. Even Some Basics on Diamond Color, Cut, and Clarity Grading.
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We import natural gemstones direct from the producers, so we can give you the highest quality colored gemstones at the lowest possible price.
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Extensive resource for information regarding gem therapy (gemstone therapy), specific therapeutic protocols, therapeutic quality gemstones, publications, and workshops and practitioner training.
Gemisphere is the premier resource for the world's highest quality therapeutic gemstones. Our team offers products for healing, therapy, and gem and crystal healing.
The biggest selection of loose gemstones, rough, minerals, specimens, birthstones, Diamonds and Sapphires on the web.
Geology.com is one of the world's leading portals to geology and earth science news and information for rocks, minerals, gemstones, energy, volcanoes, earthquakes, careers, geologic hazards, and more.
Gem therapy and gemstone therapy resource for therapeutic gemstones, publications, workshops and practitioner training.
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AfricaGems, since 1984, is a prominent seller of gemstones, gemstone rings and loose gemstones - We are "The Trusted Gemstones Expert". Shop quality natural gemstones and unique gemstone engagement rings at wholesale prices at AfricaGems.