As the world’s leading designers descended on New York Fashion Week this month to show off their hottest work, one recent Yale alum shimmered, too: Allison Williams ’10.

The 24-year-old star of HBO’s “Girls” is “Fashion Week’s new darling,” according to New York Times writer Bee-Shyuan Chang. Williams was on her game at Fashion Week, Chang writes, attending the Style Awards at Lincoln Center, Peter Som’s runway at Milk Studios and Prabal Gurung’s event at Pier 57.

“On Friday, she was spotted in a Peter Som oxblood cropped sweater with matching pencil skirt for his spring 2013 runway at Milk Studios, with perhaps the best accessories of anyone in the front row: a coterie of Vogue editors fawning over her,” Chang writes.

Chang goes on to paint Williams as a polished and driven actress who’s displaying maturity in her entry into fashion. Fashion designer Christian Siriano called Williams the “‘oldest’ 24-year-old I know.”

“She’s totally different from most actresses,” he said. “It’s probably her education. We can have real conversations.”