In 1980 , the Brunello di Montalcino was awarded the first Denominazione di Origine Controllata e Garantita ( DOCG ) designation and today is one of the Italy 's best-known and most expensive wines . In 1980 , the Brunello di Montalcino was awarded the first Denominazione di Origine Controllata e Garantita ( DOCG ) designation and today is one of Italy 's best-known and most expensive wines .