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GIA also exists to educate the gem and jewelry industry and the general public through its publications and outreach efforts. Most notable of these efforts is the quarterly publication of the magazine Gems & Gemology, a respected journal in the field. The journal includes full-length feature articles, as well as reports on GIA research ...
IGI is the largest laboratory for certification of diamonds and fine jewelry. [8] IGI is International Organization for Standardization (ISO) 9001: 2000 certified in four countries, including the United States, Canada, India and the United Arab Emirates. [citation needed]
GCI Gemological Laboratories & College's main headquarters is in the Israel Diamond Exchange in Ramat Gan. [2] The GCI has regional labs and educational centers equipped with local and Israeli staff in Russia and, since June 2006, in India—a disposition of four branches in Mumbai, Delhi, Hyderabad and Kolkata.
The American Gem Society (AGS) is a trade association of retail jewelers, independent appraisers, suppliers, and selective industry members, which was founded in 1934 by Robert M. Shipley. The Society is based in Las Vegas, Nevada , along with the affiliated American Gem Society Laboratories (AGSL) (founded in 1996) and the American Gem Society ...
A current Tennessee vehicle registration certificate or title. You cannot use both. A current Tennessee voter registration card. An Internal Revenue Service tax return. A bank statement. A payroll ...
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One test to determine the gem's identity is to measure the refraction of light in the gem. Essentially, when light passes from one medium to another, it bends. Blue light bends more than red light. How much the light bends will vary depending on the gem mineral. Every material has a critical angle, above which point light is reflected back ...