evening dress gowns Elegant Sequinned Long Designer Formal 42 Our High Couture NR2267 prom dress is elegant and sophisticated Pageant Gowns | ASHLEYlauren

It may not look like a lot of decolletage now, but back in 1981, when 19-year-old Diana Spencer was newly engaged to the Prince of Wales, a black strapless dress with a plunging neckline practically scandalized the U.K., earning her the name "Daring Di"--and creating a lifelong obsession with the soon-to-be-princess's style

Closure Lace up corset

This tip surprises some people, but remember that sizes are not the same across brands

A spread or point collar works best with a tie, while a French cuff with cufflinks adds a refined touch

The square neck and smocked bodice offer a flattering fit, while convenient pockets add a touch of practicality