I've found two similar pieces on net-a-porter.com but the exact details are hard to replicate ... I think this look would be perfect if you wanted to have a masculine/feminine approach to evening wear.
Donna Karan Cotton-blend wrap shirt. Although Jane wears a simple silk tank in the photo above, I think that this wrap shirt from Donna Karan achieves the same effect. It is also a basic with a twist and would look great against a black fitted jacket.
Right: Paul and Joe Wool-blend tuxedo jacket. Paul and Joe is a great Parisian label that makes beautiful separates. I am sure that if you were to buy this jacket you would treasure it forever.