THE HOLLYWOOD REPORTER – As if Oscar day wasn’t big enough for Aussie actress Margot Robbie, who was attending the show as a nominee for Best Actress for her starring role in I, Toyna, on top of that immense honor, Chanel announced on the same day she has become an ambassador for the iconic French fashion house.

To begin their partnership, the first-time nominee is expected to wear (she wore) a custom Chanel Haute Couture dress made by Karl Lagerfeld himself. The actress’ stylist Kate Young said on Saturday that she wanted Robbie’s look for the Oscars to highlight her youth and be “very cool and representative of her as a person.”

The intricate gown took more than 550 hours of work, according to Chanel, and is worn with Chanel Fine Jewelry as well as Chanel makeup. Said Young, “Sometimes evening gowns for the Oscars can be aging, in a way, with heavy embroidery or heavy jewelry. The embroidery on this dress is really modern and interesting.”

She also hinted that Robbie’s wearing diamonds for the occasion, “because I love the energy into big stones.” Wearing large stones, she added, can make one “look like the Queen of England in a hot second, so part of it was finding diamonds that felt cool and authentic.” (source)