IGI is the largest organization of its kind, with offices in Antwerp, New York, Hong Kong, Mumbai, Bangkok, Tokyo, Dubai, Tel Aviv, Cavalese, Toronto, Los Angeles, Kolkata, New Delhi, Thrissur, Surat, Chennai and Shanghai . The IGI School of Gemology operates from Antwerp, Mumbai, Dubai and Cavalese, offering a variety of courses designed for professionals and consumer enthusiasts alike.A certificate from IGI represents the all-important 5th C that no one should be without: Confidence. As the world's largest independent gem certification and appraisal institute for diamonds, colored gemstones and jewelry, IGI is a standard of excellence for industry professionals and consumers around the globe.1975 - 1985IGI was established in 1975 and is today the oldest laboratory in AntwerpIGI's School of Gemology is first to conduct training courses covering rough diamondsIGI Laserscribe System Mark patent introduces a method to permanently mark diamonds using laser beamsIGI is the first laboratory to issue Jewelry Identification ReportsIGI is the only laboratory in the world providing repair and re-cut of diamondsIGI is the first lab to seal diamonds for protection purposeIGI develops the first comprehensive diamond cut grading chart1986 - 1999IGI is first to perform permanent inscription on the table of diamonds, using ion beam technologyIGI Laboratories become fully equipped to identify any kind of synthetic diamondIGI develops UV-VIS-NIR spectrometer to identify treated diamondsIGI develops its own photoluminescence spectrometer to identify HPHT-processed diamondsIGI is the first laboratory to go worldwide under one management. Today 17 offices2000 – 2010IGI develops an innovative system for the grading of small diamondsIGI is the first laboratory to issue co-branded certificates in cooperation with renowned jewelry industry brandsIGI introduces hands-on courses to factories for the purpose of improving manufacturingIGI introduces supplemental courses to sales people and enthusiasts to improve their professional knowledgeIGI creates the Hearts and Arrows Diamond Reports with worldwide recognition