The IGI, or International Gemological Institute, is a well-known organization that specializes in gemology and jewelry certification. Founded in 1975, it provides grading and appraisal services for diamonds, gemstones, and jewelry. The IGI aims to ensure transparency and trust in the gemstone market by offering reliable and accurate assessments. The institute operates globally, with laboratories and offices in various countries. Its grading reports are widely recognized and used by jewelers, manufacturers, and consumers. By adhering to strict standards, the IGI helps buyers make informed decisions when purchasing diamonds and other precious stones.