If I had money to splurge (and unfortunately I don't) then top of my list would be this dress from Caost born of a collaboration with the V&A museum.
The Lottie Maxi dress is a beauty of a ball gown and honestly I would wear it round the house for any occasion as well as any balls I might perchance be invited to. It is the complete antithesis to the modern day dress code. Yet the gown has a modern look despite its fifties inspiration.
Yours for the sum of £695 from Coast