In July 2011, The Duchess of Cambridge debuted a new dress at the opening of an exhibition at Buckingham Palace (read more about that event by clicking here).

Kate at the Wedding Dress Exhibition – photos via Clarence House’s twitter feed
Specifically, Kate wore Joseph’s Scala Stretch Crepe Dress in a neutral tone. It was a sophisticated choice for Kate.
About Joseph’s Scala Dress:
The Scala dress features a soft silhouette with a plunging v-neck, making for an elegant everyday shape.
In 2011, Harrods sold the dress for £395 (approximately $600). Here’s how they described it:
A classically tailored piece in an on-trend neutral hue, Joseph’s Scala dress epitomises the brand’s effortlessly elegant design aesthetic. Pale pink dress Mock wrap design Deep V-neckline. Cropped sleeves. Zip closure to side.

Joseph Scala Sretch Crepe Dress
About Joseph:
Kate has worn clothing by Joseph on a number of occasions previously – to the Epsom Derby in 2011; during the 2012 royal tour of Canada and again at the Cheltenham Festival in 2013.

Kate wearing Joseph in 2011-13
On Joseph’s about page, they say the brand “modernised women.” The company was founded in the late sixties by hairdresser Joseph Ettedgui, who created a boutique that was “more magazine than clothes shop.”
Today, under the the creative direction of Louise Trotter, Joseph presents a high contemporary ready-to-wear collection with a strong core of luxury essentials.
If you’d like to recreate Kate’s effortless, stylish look you can do so with Joseph’s “Matt Silk Lynne Dress” in biscuit.

The Joseph Lynne Dress
The dress comes with a coordinating belt and gold-tone clasp. Unlined silk and a single knife pleat lend luxurious fluidity to this long-sleeve, shift-style dress. While skin-baring vents create contemporary femininity contrasting with tailored, button-down cuffs – with seam concealed side zip.
At the time of writing, the dress is on sale at Joseph for £175 reduced from £425.
Pair with a pair of coordinating nude pumps.