Marion Cotillard

The Oscar winner continues her love affair with Dior, her favorite couturier, and with Chopard, her go-to jewelry house. For the Paris debut of her film Allied, she donned a traffic-stopping scarlet single-sleeve gown and drop earrings with multicolored sapphires that picked up the striking shade of her dress. A perfect alliance!

ON COTILLARD
(Inset) Temptations collection earrings with 68.34 cts. t.w. briolette-cut chalcedony onyx, 7.69 cts. t.w. red and orange sapphires, and 1.33 cts. t.w. diamonds in 18k white gold; price on request; Chopard, NYC; 800-CHOPARD; chopard.com

 

UNDER $1,000
Wing drop silver earrings with white topaz; £680 ($855); Butler & Wilson, London; wholesale@butlerandwilson.co.uk; butlerandwilson.co.uk

 

UNDER $10,000
Courtney Lauren earrings in 14k white gold with diamonds, pink tourmaline, and tourmalinated quartz; $9,900; Dana Rebecca, Chicago; 312-701-1773; danarebeccadesigns.com

 

Amy Adams

Is there anything more dazzling than a redhead in a red dress? Adams wowed at the premiere of her latest film, the ultra-stylish Nocturnal Animals, in New York City, accessorizing with classic gold and diamond link earrings. Her gown was by—who else?—Animals auteur Tom Ford, who dressed his entire cast for the occasion.

ON ADAMS
Madison earrings with brilliant-cut diamonds in hammered 18k gold and platinum; $38,500; David Webb, NYC; 212-421-3030; davidwebb.com

 

UNDER $5,000
Pois Moi collection 18k yellow gold earrings with pavé diamonds; $4,000; Roberto Coin, NYC; 800-853-5958; robertocoin.com

 

UNDER $2,500
Drop earrings in stainless steel and 18k gold with 0.49 ct. t.w. diamonds; $2,195; Alor, San Diego; 800-872-2567; alor.com

(Cotillard: Stephane Cardinale/Corbis via Getty Images; Adams: Kevin Mazur/Focus Features via Getty Images)