The International Colored Gemstone Association (ICA), a non-profit organization, is the only worldwide body specifically created to benefit the global colored gemstone industry. ICA was founded in 1984 and is now comprised of over 700 gem industry leaders from mine to market, including miners, gem cutters, suppliers, retailers, trade associations, gemological laboratories, academia, museums, and more, from 47 countries who are devoted to advancing and promoting the knowledge and appreciation of colored gemstones. Lotus Gemology is a member of this organization and Richard Hughes has been invited to address several of their biannual congresses. Richard Hughes, Billie Hughes and Wimon Manorotkul have all contributed articles and photos to the ICA's InColor magazine.