Popsugar Fashion Celebrity Fashion Princess Diana's Met Gala Dress You Bet Your Booty Princess Diana Went to the Met Gala — in a Slip, No Less! 25 April 2018 by Rebecca Carhart View On One Page Photo 11 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Halston Heritage Slip Dress Halston Heritage Slip Dress ($198, originally $495) Halston Heritage Slip Dress $198 from saksfifthavenue.com Buy Now Previous Next Start Slideshow Celebrity FashionThe RoyalsShoppingThe British RoyalsGet The LookMet GalaSpring FashionAll AnglesPrincess DianaDior