GIA (Gemological Institute of America) is a leading authority on diamonds, colored stones, and pearls, established in 1931 by jeweler Robert M. Shipley. As a nonprofit organization, GIA is dedicated to gemological research, education, laboratory services, and instrument development. Headquartered in Carlsbad, California, it operates in over 14 countries with 12 campuses, 7 laboratories, and 4 research centers, employing around 1,200 experts in the field. GIA provides a range of services, including trusted diamond grading reports, gemstone identification, and treatment disclosure. It also offers professional education programs for aspiring gemologists and jewelry designers. The institute conducts research to advance gemological knowledge and develops innovative tools for accurate analysis. GIA's reports and certifications are recognized globally, ensuring that buyers and sellers can rely on scientifically based assessments of gemstone quality.