1. ShowsChange is coming to JCK Las Vegas. With a new floor plan divided into 21 neighborhoods designed to give more space to the most-trafficked areas—including a fashion jewelry pavilion dubbed Now/Next—the show, which is celebrating its fifth year at Mandalay Bay, is evolving to reflect the new realities of the jewelry business. Trend-conscious buyers should be on the lookout for ear climbers, yellow gold, and perennially popular blue stones such as turquoise and tanzanite. Thankfully, some things never change. 2. BeadsTo jewelers, it felt like Danish charm manufacturer Pandora had opened the famed mythical box of unpleasant surprises. In March, the company debuted an e-store that sells direct to U.S. consumers. And unlike other jewelry brands, it isn’t giving participating retailers a cut of the action. The e-store is also selling Pandora’s Disney line, unavailable to in