IGI operates 18 laboratory locations around the world that grade natural and lab-grown diamonds, gemstones, and jewelry, as well as 14 schools of gemology from which thousands of new jewelry professionals graduate each year. The world leader in gemological variety, IGI instructs more educational courses, provides a wider array of services, and grades a wider range of gemstones and jewelry in more locations around the world than any other gemological organization. IGI stands alone as the only worldwide gemological institute serving consumer protection by evaluating and grading finished jewelry creations, as well as loose diamonds and colored gemstones.