International Gemmological Institute (India) Ltd. International Gemmological Institute (India) Limited is an India-based independent certification and accreditation services provider. Its primary business is the provision of services related to the certification and accreditation of natural diamonds, laboratory grown diamonds, studded jewelry and colored stones, as well as the offering of educational programs. Its key services include comprehensive diamond grading, evaluating the quality and authenticity of colored stones, grading and assessment of finished jewelry pieces, and conducting educational programs and courses. Its global education platform, the IGI Schools of Gemology, enables the Company to promote the IGI brand, for certification in the diamonds, studded jewelry and colored stones industry, and helps upskill industry professionals. It provides a range of courses spanning the study of polished and rough diamonds, colored stone grading, jewelry design and retail support courses, along with a graduate gemologist diploma.