Renzi compliments Italian Olympic team for their 8 medals
Congratulates speed skater Fontana on three medals22 February, 11:10
Carolina Kostner won Italy's last medal in Sochi on Thursday, placing third in the ladies' figure skating.
2012 world champion Kostner, 27, came third behind Russia's Adelina Sotnikova, who won the gold, and defending champion Yuna Kim of South Korea.
It was the first taste of Olympic success for Kostner, one of Italy's most popular athletes, after five European titles and several world medals.
She flopped at Turin in 2006, where she finished ninth after going in as favourite, and placed 16th at Vancouver in 2010.
Italy won the bronze medal in the biathlon mixed relay on Wednesday.
The Italian team of Dorothea Wierer, Karin Oberhofer, Dominik Windish and Lukas Hofer came behind gold medallists Norway and the Czech Republic.
Earlier in the Games, Fontana won two individual medals, bronze in the 1,500-metres and silver in the 500m, and helped Italy come third in the 3,000m relay event.
Italian skier Christof Innerhofer won two more medals: silver in the men's downhill and bronze in the super combined.
Veteran luge star Armin Zoeggeler's bronze was the other medal Italy won in Sochi.