GIA (Gemological Institute of America Inc.)
Established in 1931, GIA protects the public through gemological research, education, impartial gem identification and grading services and instrument development. The world’s foremost authority in gemology, GIA created the 4Cs and sets the standard for determining the qualities of diamonds, colored gems and pearls. Visit GIA.edu http://www.gia.edu
Presentations
No presentations found for this session.