Anything left in the sales for a wedding guest?

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My friend has a big formal wedding to go to in the middle of March. She has bought a dress but now thinks it is not suitable for the occasion.
She is a size 10, 49, with green eyes and dark blonde hair,5'6"
have you seen anything in the sales, as budget is limited (less than 100 for a dress)
I am not keen on black, but that is me, not her!

The Coast Nikita dress is a great bargain just now and seems to flatter every shape. ASOS various colours in a size 10, all reduced from £125:

Red £67.50

Navy £63.50

Black £87.50

Thanks very much for your reply, I will forward these on to her!