Some 23,000 retailers and 2,300 exhibitors will gather at the Mandalay Bay Resort & Casino May 31–June 6 to discover new jewelry designers, scout hot trends, and buy and sell to their hearts’ content at LUXURY and JCK Las Vegas. But that’s just during business hours! We say to the adventurous jewelry entrepreneur: Put down your spreadsheets, lookbooks, and calendars and check out what’s new in Vegas…because there’s always something new in Sin City. Home to cinematic casino break-ins, hangovers, bachelorette parties—and, of course, the famous “whatever happens...” motto—the city never seems to grow stagnant, thanks to hoteliers, entrepreneurs, and entertainment executives who continue to be bullish about the resort town’s economic prospects.  There has been consistent reinvestment since the recession in 2008, and last year Las Vegas set another new