This week was all about dreamy drapery. And the winners are...

Emma Watson in Bottega Veneta at the "Harry Potter and the Deathly Hallows Part 2" premiere in New York. Emma has been pulling out all the stops in celebration of the film's series finale, and this corseted creation is no exception.

Catherine, Duchess of Cambridge in Alexander McQueen at the 2011 BAFTA Brits to Watch Event. As usual, the Duchess looked simply sensational in this pleated, chiffon gown, which she accessorized with a metallic clutch.

Sarah Jessica Parker in Oscar de la Renta at the "Harry Potter and the Deathly Hallows Part 2" premiere in New York. The "SATC" star showed off her artistic side in this brush-painted gown, topping off her look with a menswear blazer and turquoise earrings.

Blake Lively in Marchesa at the 2011 BAFTA Brits to Watch Event. The "Gossip Girl," who usually has a penchant for the low-cut and leggy, enchanted onlookers in this romantic, chiffon gown, which featured beautiful embroidering along the neckline, sleeves and hem.

Jennifer Garner in YSL at the 2011 BAFTA Brits to Watch Event. I'm hereby declaring sapphire as Jennifer's "IT" color because, every time she wears it, she receives a standing ovation. This asymmetrical gown, while loose-fitting, managed to hug the actress in all the right places.

Photos (left to right): Ron Smits/London Entertainment/Splash News; Pool/Getty Images; Richie Buxo/Splash News; Kevork Djansezian/Getty Images; Kevork Djansezian/Getty Images