The Gemological Institute of America GIA, is a nonprofit institute dedicated to research and education in the field of gemology and the jewelry arts. It was established in 1931

Diamond Grading Lab Class

GEM 230L

Class Duration
5 days or 10 nights (35 clock hours)

$ 1,500

Learn to grade diamonds using a gem microscope and jeweler’s loupe.

Master GIA’s Diamond Grading System, discover timesaving shortcuts to determine a variety of grading factors, and learn to read a GIA Diamond Grading report.

Practice grading techniques on diamonds graded by GIA.

What You Earn

Letter of Completion

Required for These Diploma Programs

Graduate Diamonds Program
Graduate Gemologist Program

Contact info-

GIA World Headquarters
The Robert Mouawad Campus
5345 Armada Drive
Carlsbad, CA 92008
Call: +1 800 421 7250
Call: +1 760 603 4000
Fax: +1 760 603 4080