GIA’s 2018 International Gemological Symposium in early October was a who’s who of industry bigwigs (Top) Maestro Roger Nierenberg led a welcome session centered on a learning experience called “The Music Paradigm.” GIA’s Susan Jacques and Tom Moses presided over the Richard T. Liddicoat Centennial Celebration gala. GIA’s Russell Shor walks a Symposium attendee through his poster on “The New Economics of Diamond Mining.” Responsible Jewellery Council’s Edward Johnson and GIA’s John Hall David L. Ager, managing director of Harvard Business School’s executive development program The Rapaport Group’s Martin Rapaport (c., seated) was among the participants in the symposium’s Harvard Business Track. Kent Wong (Chow Tai Fook), Rahul Kadakia (Christie’s), Andy Johnson (Diamond Cellar), and Jason Goldberger (Blue Nile) at the closing session