I am a true size 10 in American clothes. It fits up to a 14 as the alterations were not done. Don't ask. Sad on the wedding day. Anyway, it can be scaled down to a size 10 easily or used as a current size 12. The dress is a flattering mermaid dress and the all lace back makes it look expensive, but it was a reasonably priced dress. The front has lace and some beading to give it the extra shine.
I will be updating this post with some measurements.