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The American Gem Society offers you superior diamond education and appraisal. Our certified gemstone and diamond experts will provide you with high quality service and information.

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Kojima Company is a unique venue for nearly every variety of both natural and cultured pearls. In conjunction with Pacific Pearls we offer Akoya pearls, Chinese fresh water pearls, Japan Kasumi pearls (fresh water pearls from Lake Kasumi-ga-ura ...

Pure Pearls specializes in Akoya pearls, Freshwater pearls, Tahitian pearls with custom pearl jewelry sets, pearl necklaces & pearl earrings. Compare our pearl jewelry - pearl rings, pearl necklaces, pearl earrings, pearl rings and pendants to hi...

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As the largest online retailer of certified diamonds, engagement rings and fine jewelry, Blue Nile offers outstanding quality, selection, and value.

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Hi. I'm Dr. Anne Helmenstine, scientist, author, and mom. I write and edit About.com's Chemistry Website, which covers general chemistry, science...

CLU-IN - The Hazardous Waste Clean-up Information (CLU-IN) Web Site provides information about innovative treatment technology to the hazardous waste remediation community. It describes programs, organizations, publications, and other tools for feder...