RAPAPORT... Douglas Hucker has left his position as CEO of the American Gem Trade Association (AGTA) after 24 years.During his time with the organization, Hucker upped AGTA’s focus on education and key issues such as treatment disclosure and the origin of gemstones, the AGTA said last week. He also formed affiliations with other industry groups, including the World Jewellery Confederation (CIBJO),...