We made this collage, inspired by Lanvin for Acne Jeans.

The blazer is silk, but looks like the denim that Alber created.
Pair it with a pair of boyfriend jeans, roll them up and wear a pair of high high high heels.
Essentially - you've created the same look - using topshop pieces and any costume jewelery that you can find (maybe add a few bows and pearls where you can) - for less than $1000.