For many years, renowned associations and institutions have trusted in Constantin Wild’s profound knowledge and long-standing expertise. He is a member of the Federal Association of the Precious Stone and Diamond Industry, the Friends Association Edelsteinstrasse, the Koblenz Chamber of Commerce and Industry and the Friends’ Association of the German Gemstone Museum. For more than ten years he has chaired the German Gemmological Association (DGemG) as vice-president, and he is a member of the foundation council of the German Gem Lab (DSEF). At international level, he is a member of the Responsible Jewellery Council (RJC), supporting the board of the International Colored Gemstone Association (ICA), and has been a member of the Gemological Institute of America’s (GIA) Alumni Association since 1984.