Chiara Ferragni from The Blonde Salad blog, after Rag & Bone, NYC, September 2013.
An elegant monochrome look to take you from day into night. I almost feel that it has a tuxedo vibe like Olivia's look here. If you prefer not to wear a white jumpsuit (hellloooo dry cleaning bills if you are like me and rather prone to spills), flip and reverse Chiara's look and wear a black (or navy) jumpsuit with a white blazer or jacket.
Recreate Chiara's look (kind of):
Alexander Wang Draped Halter tuxedo jumpsuit, 5th & Mercer sleeveless jumpsuit, Marc by Marc Jacobs Anya crepe jumpsuit, A.L.C. King jumpsuit, ASOS jumpsuit with tie waist, By Malene Birger Neemi silk jumpsuit or Band of Outsiders collar & button jumpsuit
BLK DNM Tux jacket, Acne Cast D blazer,  Joseph Laurent blazer, or ASOS blazer
Alexander Wang Kiko pumps, Jimmy Choo Abel pumps, or Topshop Great pumps