This is the perfect Valentine's Day dress. You better get on it ladies! The inspiration is ModCloth's Aisle Be There dress in rose. I think I featured Gertie's pattern once before: Butterick 5882. I scooped up a copy of the pattern a few months ago when JoAnn's was having one of those pattern sales. Such an amazing dress deserves to showcase an equally amazing fabric. For this dress, I thought a cotton silk poplin would provide the appropriate sheen and drape. You could also use something like a charmeuse, though I'm not so in love with the kind of drape that would provide. I think you need a bit more structure and the charmeuse would be tough to sew.
I love this dress. I need to find some fancy dress parties to attend so I have reason to make dresses as fabulous as this one.