By InStyle Staff
Updated Sep 23, 2012 @ 6:47 pm
Keirnan Shipka
Credit: Getty Images

Wouldn’t it be amazing to have a custom designer dress at age 12? That’s what Mad Men’s Kiernan Shipka got when she arrived at the 64th Annual Primetime Emmy Awards wearing a made-to-measure ice blue Zac Posen dress accessorized with David Webb brooches on the shoulders. “I met up with Zac in New York at his alteleir and I told him my ideas of what I wanted it to be," the actress told of the process. "He had this whole vision. He's brilliant. He came up with two sketches and I chose this.” As for the gold, platinum, diamonds and turquoise clips—accessories worth $39,000—it was the designer's idea. "They're actually not part of the dress," she said. "They're shoulder clips that Zac found. He's a visionary. They complete the look." And Posen is proud: "It's exciting," he told us of dressing actresses for the show. "They should feel comfortable in what they're wearing, that's the most important. And they should have fun!" Mission accomplished!

Plus, see the entire Emmys red carpet!

— Lindzi Scharf