Name Hazelnut Seal of quality Protected Geographical Indication (PGI) – D.M. 02/12/1993. Description The name Nocciola del Piemonte or Nocciola Piemonte denotes the fruit of the Tonda Gentile hazelnut of the Langa area, cultivated in the region individuated in the decree of reference within the Regione Piemonte. The Rotonda Gentile variety of the Langa area…