The events calendar at JCK Las Vegas is chock-full of fun industry get-togethersIt’s often said that business deals are done during the off-hours—on the golf course, around the dinner table, or, in the case of JCK Las Vegas, at one of the many events that populate the show’s social calendar. Because few industries appreciate a good party more than the ­jewelry crowd, we spoke to JCK senior vice president Yancy Weinrich about the nighttime gatherings no self-respecting JCK-goer should miss in Las Vegas.JCK: We’re four weeks out from the show. What are you most looking forward to?Yancy Weinrich: I’m most passionate about the people and the product, so that’s what I’m excited about. This industry is unique in that we all like to spend time together. The tagline for JCK’s first marketing piece is “It’s not just business, it’s personal.” And that’s how I feel about