The Best-Dressed Celebs This Week: 11/1/13

From Natalie Portman in Dior to Rita Ora in Donna Karan Atelier—these are the stars who are winning in the most stylish category.

Natalie Portman looked beyond in this white Dior ball gown at the premiere of Thor: The Dark World in Germany.

Hands down one of the most gorgeous dresses Oscar de la Renta has ever made, as modeled by Camilla Belle.

Blake Lively's beaded, white, off-the-shoulder Balmain dress at the New Face of L'Oreal Presentation was SO good. Dream dress.

Nicole Richie just straight up killing it per usual.

Sometime you just gotta rock a high collar. We feel you, Rachel Bilson.

Just a little Donna Karan Atelier silver embroidered gown moment for Rita Ora at the Angel Ball.

Zoe Saldana in cobalt Chloé at the Chloé fashion dinner, natch.

Also slaying at the Angel Ball: Jess White in a custom Michael Costello.

Jess Stam is giving us floral fierceness and I LOVE it.

Jess Alba was Kenzo cute at their launch party held inside a skater park this week.