Natalie Portman is back on the red carpet in impeccable fashion.
On Tuesday, the Oscar-winning actress and mother of two, 35, hosted 150 guests at French brand Christian Dior’s Château de la Colle Noir for a garden party during the Cannes Film Festival to celebrate her newest campaign for Miss Dior.
The stylish soirée marked Portman’s first post-baby red carpet appearance since she and husband Benjamin Millepied, who was also in attendance, welcomed their second child, daughter Amalia, 12 weeks ago.
Portman opted for a blue velvet gown from Dior’s Fall collection, which she accessorized with a Fred Leighton cuff that featured Zambian emeralds.
Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter.
The Dior event comes three weeks after Portman was spotted returning to work on a photoshoot in Beverly Hills, California in late April.
FROM PEN: Natalie Portman Reveals The One Benefit Of Dressing For Red Carpets While Pregnant
Portman and Millepied, 39, welcomed Amalia on Feb. 22. “Mother and baby are happy and healthy,” her rep told PEOPLE in early March. The pair, who married in 2012 in Big Sur, California, are already parents to son Aleph, 5½.
Back in September at the Venice Film Festival, Portman made her baby-bump debut while promoting her movies Planetarium and Jackie — the latter of which generated an Oscar nomination for Portman’s portrayal as former First Lady Jacqueline Kennedy Onassis directly following the assassination of John F. Kennedy.