LFW: Day 3

Ask any fashion lover in London what the highlight of this Fashion Week is and they'll tell you the opening of the Balenciaga store on Mount Street. According to designer Nicolas Ghesquiere: "All week women have been coming by to see if the shop has opened. London women are very fast! In Paris they stand back and take time to investigate."

No other event in town was more exclusive than the cocktail party marking the store opening last night. Well, the dinner that followed the cocktail party marking the store opening was more exclusive, so much so that it was only A-listers and socialites, no press thank you very much, but the drinks party was a very intimate affair: Ghesquiere, of course, Emma Watson, Bee Schaffer, Charlotte Gainsbourg, shoe designer Pierre Hardy and make-up artist Pat McGrath… and me! Oh there were other journos in the room, but they don't count because I highly doubt they love Balenciaga as much as I do. Except maybe Emma Watson, who told me: "I have never met the designer before, but I can't wait. I'm wearing Balenciaga top-to-toe."

The store is a collaboration between the designer and French artist Dominique Gonzalez-Foerster , and almost resembles a spaceship, with its capsule changing rooms, mirrored posts and psychedelic carpet. Ghesquiere told me: "Our aim is for every store in the world to have a different look and feel."

And the clothes? Breathtakingly avant-garde, from the rivet-studded clutch bags to the sculpted brocade minidress Bee Schaffer had on last night. There were even two stunning wedding dresses. I heard one fashionista coo: "That's so beautiful, it makes me want to get a divorce just so I can get married again." Now that's a good dress…

Check out the shop on 12 Mound Street, London, W1.

Check out all the latest news from London Fashion Week here