This was a dress is by Sue Wong, I have fairly strong memories of print ads in Vogue in the 80s and 90s, but I think she has long since given up with the UK market. A quick google search reveals Sue Wong is still going strong as a would be Vera Wang, but without such a clear brand and direction.
The dress was an A line with empire top so make me look like a rectangle since I am widest at my shoulders and ribs (an inverted triangle if you like!)
I'm wearing it with some comfy cords from Earl Jean, who also seem to have given up in the UK, they used to be bigger than 7for all Mankind, and seem to have all but disappeared.
Do you have any staples from brands that are no longer around? I love the walk down memory lane of remembering the oldies...Chelsea Girl, Snob, Jean Machine...can anyone remember others?!!