A few, like Alexa Chung and model Cara Delevingne, opted for smaller iterations, and the result was quite chic. Chung selected Chopard's gorgeous Platinum and Diamond Necklace with Pear-Shaped Brown-Yellow Diamond (price upon request, 800.CHOPARD) for the premiere of Sleeping Beauty at the Cannes Film Festival earlier this year, which she wore with a vintage white Balenciaga dress. We love how the diamond pendant echoes the elegant and refined nature of her red-carpet look. A few days earlier, at a Met Gala after-party, Delevingne accessorized with a similarly dainty pendant, though she opted for a lust-worthy Genevieve Jones design. We totally approve of Develigne's stunning Burberry Prorsum dress, especially since a plunging neckline is a foolproof way to keep your pendant necklace the focal point of your ensemble.