The chic Duchess arrived at the 2012 Olympic Gala in London wearing a stunning aqua blue number by one of her favorite designers, Jenny Packham.

Middleton stayed true to her elegant fashion sense as she arrived in London's Albert Hall in a striking Packham billowing dress. A surprising pick of hues, the Duchess ditched her muted and earth-toned ensembles for a vibrant blue chiffon and lace gown that she paired with glitzy Jimmy Choo heels.

With her husband in hand, Middleton looked effortlessly stunning, especially with a braided-up do that makes her look nothing short of a true royal. The gown has delicate lace and button details at the back, a good element of style that accentuates The Duchess' toned shoulders.

The scrunched neckline and capped shoulder with lace details make the gown even more appealing, showing off Kate's graceful posture. Upon the reveal of this outfit, fashionistas and royal family followers bombarded Twitter with photos of the Duchess, with entries saying how "gorgeous" and "glamorous" she is.

"Whoa Kate Middleton! Girl is upping her fashion game in sheer, lacy Jenny Packham and a must-see new hairdo." tweeted Fashionista.com.

Middleton has always been known for her sleek taste in clothing. With her closet-full of designer wear and RTW basics, the 'discount Duchess' is hailed as the 'most fashionable royal' by numerous magazines and fashion lists in web, print, and polls.

View the slideshow to see images of the Duchess in her stunning Jenny Packham Olympic Gala look.