• Mayor Bloomberg has pronounced it "Sparkle Week" in NYC as part of an effort to give a boost to the jewelry industry. They sure could use the help: Retailers in the Diamond District report that sales have dropped by more than 50 percent over the past year. [NYM, Crain's]
• Jil Sander's new Madison Avenue store has opened its doors. [Racked]
• Lauren Hutton was injured while surfing a couple of weeks ago, but she's still hoping to make it to the Costume Institute ball. [NYM]
• Is Chloe Sevigny single-handedly trying to bring back the sandals-and-socks look, or was the combo of sun and booze at Coachella to blame? [Frisky, JJ]