Gemological Science International GSI is the only major gemological organization established in the 21st century Founded in 2005 in New York City it has grown to become one of the largest gemological entities in the world with laboratory facilities spanning four continents and offices in United States of America India Israel Belgium Botswana Dubai and Hong Kong Utilizing cutting edge processes and proprietary technologies along with a commitment to the highest ethical standards and practices GSI provides manufactures and retailers globally with a wide range of gemstone identification and grading services The company is committed to advancing gemological research and offers gemological educational programs for trade professionals and the general public through its state of the art research center