Grade
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1. Like a grade in school, a rating given to a feature in diamonds or other gems.
(verb) 2. To measure a gem's special feature (like clarity) using an established grading scale.
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Appraiser

With your trusty loupe and your critical eye, you uncover the story behind gems, jewelry and watches...
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In The Classroom

Guides and instruction for all things GIA and gemology.
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