I would never have thought that I would like those colors together, but that is a stunning and unique piece. I love it. I also love the look on her face almost like a smirk about getting to wear something so fabulous
Her dress was by Dolce & Gabbana, so probably a good chance that the necklace/earrings are also D&G? They do make a jewelry line and recently featured coral in many pieces but what I found online was not as elaborate as Upton's look. FYI.