Happy Sparkle Week!

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]

Marc Jacobs's latest outpost in London has opened, says Robert Duffy. Just 30 more openings to go in 2009! [Vogue UK]
• Rumor has it Adriana Lima may be the new face of Givenchy. [Fashionologie]
• The beauty brand Stila isn't going away after all. A private equity firm has acquired the company via a foreclosure sale. [WSJ]
• Has Michelle Obama changed the face of fashion? [Guardian]
Vogue's Hamish Bowles's very delightful lunch with Deeda Blair. [Style.com]
• A conversation with Isaac Mizrahi. [Glamour]