I resisted the urge to throw on my McQueen skull scarf with this outfit, mainly because I feel like I've repeated that particular item a lot lately (I also just wore it with this exact same blazer). But come fall, won't this dress/blazer combo be spectacular with the scarf, plus my Hero tights and Miu Miu pumps? That's an outfit that's been floating around in my head for several months. For now though, I've gone with a scaled down, slightly more summery version by leaving my neck and legs bare.
This is a great example of how clothes that truly fit your style can magically end up looking like they were made to go together. I was drawn to both the dress and the blazer because of the asymmetric draping, and it's that very detail that marries the two so perfectly. The folds of the blazer draw the eye smoothly down to the corresponding folds of the dress. I also tend to like tops or dresses that have interesting details at the neckline such as the ruching on this dress, so the fact that the blazer is cut low enough to reveal those details makes it a great fit for my wardrobe. 
I actually didn't have to try on this outfit in advance to know that the dress and blazer would work perfectly together. This one was completely intuitive.Dress: Valentino
Blazer: Helmut Lang
Necklace: Ambiance on Haight Street
Ring: Wendy Mink
Sandals: Michael Kors