A U.S. economic recovery bodes well for the VicenzaOro Winter fairThe European debt crisis and Italian prime minister Silvio Berlusconi's abrupt November departure be damned. What Italy's export jewelers really care about is how the U.S. jewelry business did over the holiday.Put simply, a strong holiday season means there's cash to buy—and room to replace—sold-out inventory. So holiday sales will be the hot topic when VicenzaOro Winter convenes Jan. 14–19 in Vicenza, Italy. As the year's first major ­jewelry fair, the show sets the global tone for jewelry sales for the 11½ months that follow.Florence, Italy, firm Annamaria Cammilli Gioielli will bring as many as 12 to 15 new collections, plus popular existing lines such as Black Rose, Calla, and Dune, some featuring trendy matte gold finishes. While a rep calls Italy its "first market," the United States "is important and at the