I'm all about the unexpected shopping destinations this week, and my latest secret is Principles. No longer just a shopping destination for middle class mums, their two colour dress looks like it could have come straight from the Jonathan Saunders catwalk (but at £59 it's much more affordable). The frill-edged purple silk top has a hint of the Phillip Lim about it and would look great with a slinky high-waisted skirt and heels. It also comes in acid green for £29. The black bag reminds me of the designs by Anya Hindmarch for Target (which are sold out in the UK).