“This dress is everything I love about Valentino,” says Rachel Zoe about Alexa Chung’s stunningly intricate gown she wore last night to the opening of the new Bulgari exhibition in NYC. Layers of delicate tulle hand-embroidered with vibrant wildflowers? One word: wow. While you want to let a runway look of this caliber shine on its own, adding a few equally jaw-dropping jewels can be the perfect finishing touch (in Alexa’s case, a diamond brooch in an updo and cascading chandelier earrings). File this look under “How you make black tie feel cool and modern.” Congrats Alexa, you just set the bar—again.