Popsugar Fashion Princess Diana Princess Diana's Most Stylish Hats We're Tipping Our Hats to Princess Diana's Timeless Toppers August 31, 2015 by Mandi Villa View On One Page Photo 13 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 13 Emerald Elegance While exiting Buckingham Palace in June 1987, the queen looked lovely in her cobalt combo, but it was Princess Diana who stole the show in an elegant emerald ensemble, complete with a statement topper. Previous Next Start Slideshow Princess DianaHats