Been invited to a Great Gatsby inspired Christmas party with DH. It's in a beautiful grand old house and will be very formal.
Ladies, please can you help dress me? It's been a tough year and is the first nice party I've been invited to in a long time. I love this period, I really hope you have a few ideas. 
Budget is high street (around £100 for a dress ideally), although as I can wear the outfit over Christmas as well I will stretch to more if it's gorgeous and a little bit practical (i.e. not some un-washable number that all the beading falls off after one wear).
I have a couple of shoe options (new & comfy pair of patent black high heels) but would like a headband or headdress or other accessories. Have a few pearl necklaces. I have a 20s beaded bag already and I also have a big fake fur coat!
I'm 5'6, size 12 (slimmer with Spanx
), long hair. 35 years old.