From PEOPLE Magazine Click to enlarge
NATALIE PORTMAN

Necklace

The actress wore Harry Winston diamonds to amp up the glitz of her '50s vintage Dior gown.

CAMERON DIAZ

Ring

Wearing nearly $1 million worth of Tiffany & Co. jewels, she shone in a platinum and diamond ring.

GWYNETH PALTROW

Bracelet

Adding spice to her classic look, she made a bold statement with an Anna Hu Haute Joaillerie diamond cuff.

ROSE BYRNE

Earrings

Her look, "beautiful but modern," says makeup artist Maud Laceppe of NARS, was topped off with Chanel Fine Jewelry black-and-white diamond and pearl earrings.