I need a black tie dress for an event next week. Long story but I need to look especially amazing!
I have had a look around online and in a few shops but cannot find anything that is not either:
Too cheap and young looking
Ridiculously expensive and a bit conservative
Boring and middle of the road (john lewis etc)
Also shops seem to be mostly full of coats and cardis, apparently we're not meant to be thinking of party dresses 
Any recommendations? I'm a size 8 but pear shaped - need something forgiving on the thighs. I'm hoping to spend under £150. Colour wise I suit blue/grey/silver/pink, black at a push.