Tracee Ellis Ross stuns in a red Carolina Herrera dress and a dazzling NIWAKA diamond choker. (Kevin Mazur/WireImage)

Ava DuVernay in a powerful full Louis Vuitton look. (David Livingston/Getty Images)

West Side Story actress Rachel Zegler in a Dior Haute Couture gown and a Tiffany & Co. choker. (Jeff Kravitz/FilmMagic)

Actor Timothée Chalamet took a look from Louis Vuitton’s women’s collection, complementing it with Cartier jewelry. (Kevin Mazur/WireImage)

Best Actress nominee for The Lost Daughter Olivia Colman looks statuesque in a Dior Haute Couture gown accessorized with Chopard Haute Joaillerie diamond earrings and rings. (Kevin Mazur/WireImage)

Venus Williams looks gorgeous in a stunning Elie Saab gown accessorized with a pair of Tiffany & Co. Elsa Perretti Bone Cuffs and earrings. (Emma McIntyre/Getty Images)

Nicole Kidman makes a statement in an Armani Privé gown and Harry Winston jewelry, especially the Eagle Yellow Diamond Necklace from the New York Collection, and yellow diamond earrings, and a diamond cluster bracelet. (Momodu Mansaray/Getty Images)

Actor Kodi Smit-McPhee looks cool in a Bottega Veneta suit and Cartier diamonds. (David Livingston/Getty Images)

Actor Rami Malek looks sharp in a Prada tuxedo accented with a jeweled lapel pin by Cartier. Malek also wore a Cartier watch, ring, and cufflinks. (​​Mike Coppola/Getty Images)

Renate Reinsve channels an edgy black-tie look in a Louis Vuitton gown. (Jeff Kravitz/FilmMagic)

The green Bvlgari emeralds perfectly complement Vanessa Hudgens’s gown. (Kevin Mazur/WireImage)

Dune Makeup artist and hairstylist and Oscar nominee Eva Von Bahr knows how to create a memorable look. Her gown features the Raphael painting Madonna del Prato. Her sculpturesque bag adds an added touch of fancy. (David Livingston/Getty Images)

Zendaya stuns in a Valentino ensemble paired with jewels by Bvlgari. (Angela Weiss/AFP via Getty Images)