Emmanuel Tarpin . Vicenzaoro: Is there a new paradigm in the diamond jewellery market? Who are the buyers of diamond jewellery ? Here is what to remember from the talk organized in Vicenzaoro by the CIBJO and the Natural Diamond Council, with Roberto Coin, Mina El Hadraoui, Katerina Perez and Bérengère Treussard. GEMGENEVE, the new exhibition dedicated to Jewelry Discover the collections of the innovative jewelers present at the Gemgeneve show with Emmanuel Tarpin, Fabio Salini, the Piat house, Sandra Cronona, Thomas Faerber.