ExpoGema
E.T.S.I. Mines and Energy (UPM), Madrid, Spain 22-23 Oct 2026 Ended
ExpoGema Madrid as a Specialized Meeting Point for Gemology, Education, and the Global Gemstone Trade The ExpoGema, established in 2016, has quickly become one of Spain’s most focused and respected events in the field of gemstones and gemmology. The name itself combining “Expo” and “Gema,” the Sp…





