Andra Day wore winning Chanel couture and high jewelry (including the house’s amazing “Brins de Diamants” earrings and “Légende de Blé” bracelet) to scoop a Golden Globe for her soulful turn in “The United States vs. Billie Holiday.”Zendaya was positively incandescent at the Oscars in more than $6 million of Bulgari diamonds and a neon yellow Valentino cutout gown.