Telling you every woman should own a little black dress is about as obvious as reminding you to change your email password on a yearly basis, but telling you to own a unique spin on the LBD is not. The key to finding an original version is to choose one with a point of interest—like a lace overlay, ruffle detail or intricate embellishment—to ensure you stand out in a crowd. Rachel Zoe’s outfit of the day is Emma Stone’s anything-but-ordinary LBD by Bottega Veneta, which she wore to the Hammer Museum’s annual Gala in Los Angeles over the weekend. Ms. Stone’s choice to pair a feminine lace evening dress with tough cut-out booties is the ultimate styling trick to make a girly frock feel edgy and modern. Finish with a loose ponytail or topknot, subtle smoky eye and barely-there lip gloss and you’ve taken the fail-safe cocktail staple into head-turning territory.