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1. www.gia.edu › gia-aboutThe GIA Difference - GIA.edu

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   Há 4 dias · Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.

   • Spring 2024 G&G Available Now

     To celebrate Gems & Gemology ’s 90th anniversary, our spring...

   • Peridot Description

     Yellowish green is the most common peridot color seen in...

   • Amethyst Description

     Amethyst Description. This amethyst crystal is from Namibia....

2. www.gia.edu › schoolProfessional Gem Education | Gemology School – GIA

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   Há 2 dias · We offer the finest gem and jewelry education in the world with curriculum developed from our groundbreaking research and delivered by the industry’s leading experts. GIA gives you the knowledge and practical skills to translate your love for gems and jewelry into a rewarding career.

3. Vídeos

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     GIA (Gemological Institute of America) Employees, Location, Alumni | LinkedIn

     31 dez.. 2008

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     How to Choose a Diamond: Four-Minute GIA Diamond Grading Guide by GIA

     21 jul.. 2014

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     Diamond shopping? Trust GIA

     4 fev.. 2019

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4. 4cs.gia.edu › interactive-4cs › colorDiamond Color | Gemological Institute of America - 4Cs

   4cs.gia.edu › interactive-4cs › color

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   Há 6 dias · Diamond Color. The color evaluation of most gem-quality diamonds is based on the absence of color. A chemically pure and structurally perfect diamond has no hue, like a drop of pure water, and consequently, a higher value. GIA's D-to-Z color-grading system measures the degree of colorlessness by comparing a stone under controlled ...

5. www.gia.edu › gia-news-press › gia-at-las-vegas-showsGIA Brings Exciting Lineup to Las Vegas Shows!

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   22 de mai. de 2024 · An independent nonprofit organization, GIA (Gemological Institute of America), established in 1931, is recognized as the world’s foremost authority in gemology. GIA invented the famous 4Cs of Color, Clarity, Cut and Carat Weight and, in 1953, created the International Diamond Grading System™ which is recognized around the world as the standard for diamond quality.