frigging freezing February wedding- I need a jacket!

[LadyBarlow]

hi, I'm going to a lovely posh wedding, I have a purple dress from coast, can't find it on the website or else would link. The dress is knee length, sleeveless with a sort of boat neckline.
I've been looking for something to keep me warm, ideally not a pashmina! Don't mind if it's a coat, jacket, whatever
I'm 39, size 14 & have large norks!
Budget- ideally cheapish but £150 absolute limit
Thanks oh stylish ones!

Cropped fake fur thing? Maybe in a silvery grey?

I'm really coveting a cape from M&S (saw instore on Saturday)
Can't do linkies but its fleecey with faux fur trim .
In grey or grey /black fur
£39.

I'm because I don't like fur (real or otherwise).
But that would look nice over a purple frock.

Thanks- both ideas sound good, Remus have you seen anything like that anywhere? I'm going to have a look in M&S for the cape.

LadyB, I think either HoF or Debenhams has little faux fur jackets which would look stunning with purple dress, I can't remember if they had grey but there was an ivory one that would go with everything. They were gorgeous and I reluctantly put them down because I have no event to wear them at, hence my vagueness over the location. It was in Westfield White City so it has to be one of those two shops, but logically if they've got them then Hobbs, Coast (or is it Toast? the sort of place that does wedding/raceday dresses) will have similar items in stock. Enjoy the event!