IGI is the largest organization of its kind, operating 20 laboratory locations around the world grading finished jewelry, natural diamonds, lab-grown diamonds and gemstones – and 14 schools of gemology graduating thousands of new jewelry professionals each year.
Each month IGI screens, identifies and grades over a million stones. From tiny diamonds adorning sparkling jewelry pieces to world record setters weighing hundreds of carats, a diamond’s journey through our laboratory is one of sophisticated assessment and analysis. From intake through inscription, every step is performed with careful attention to detail and thorough, transparent reporting.
Every diamond has a story.
IGI ensures that your diamond story can be told to the world with confidence.