FashionEtc.com

Natalie Portman put her burgeoning baby bump front and center in a wine-colored Rodarte gown, a platinum and diamond ring and tassel earrings by Tiffany & Co., and a Roger Vivier clutch.

Mila Kunis looked sweet and sexy in a lavender chiffon gown with tiered lace detailing and grosgrain ribbon waist from Elie Saab’s Spring couture collection, complementing the feminine number with 30 carats of Neil Lane diamonds.

Amy Adams’s high-wattage Oscar sparkle included a cap-sleeve, caviar-bead, embroidered L’Wren Scott gown and Salvatore Ferragamo shoes—and $1.35 million in showstopping Cartier emerald and diamond jewelry.

Halle Berry went sexy and chic with a crystal-encrusted Marchesa corset gown with organza and silk tulle ruffles that perfectly matched her skin tone. She upped the gorgeous factor with a pearlized anaconda Kelly Locke clutch, Neil Lane diamonds, and Christian Louboutins.

Scarlett Johansson took the bombshell route in a burgundy lace Dolce & Gabbana dress, Christian Louboutin shoes, and Anna Hu Haute Joaillerie collection jewels.

Sandra Bullock matched the carpet in a traffic-stopping red Vera Wang silk faille mermaid gown with a double bustier and origami bow, accessorizing with platinum and diamond stud earrings, and vintage platinum and diamond bangles by Harry Winston.

Reese Witherspoon’s glam bouffant may have channeled the ’60s, but her black and white Giorgio Armani Privé with a subtle train and Neil Lane jewelry were perfectly modern.

Melissa Leo—an Academy Award winner for The Fighter—dazzled in a metallic and lace Marc Bouwer dress and three-diamond drop earrings by Jay Carlile.

Gwyneth Paltrow (actress and singer—what can’t she do?) shone in a molten silver Calvin Klein Collection sheath dress and Louis Vuitton jewelry.

Cate Blanchett went anything but safe and stunned in a Spring 2011 Givenchy couture gown with pearls, chiffon, and leather trimming. Completing her look: vintage Van Cleef & Arpels yellow and white diamonds.

Hailee Steinfeld looked equal parts age-appropriate (the Best Supporting Actress nominee is 14!) and Oscar glam in a ballet-pink tea-length Marchesa number with intricate hand embroidery and a princess-worthy full tulle skirt. She finished her ensemble with a Salvatore Ferragamo clutch, nude peep-toe pumps, and a platinum and 10-carat diamond Fred Leighton headband.

Michelle Williams was effortlessly girlie in a short-sleeve beaded white gown from Chanel’s Spring 2011 haute couture collection and Harry Winston diamonds.

Nicole Kidman went winter white in a structured Dior gown with a platinum and 13-carat diamond ring by Fred Leighton.

Jennifer Lawrence, a red carpet newbie (and nominee!), donned a clingy custom Calvin Klein Collection red silk crepe tank dress, Judith Leiber gold clutch, and platinum and fancy yellow 16-carat diamond earrings by Chopard.

Jennifer Hudson went for high-profile color in a plunging tangerine Versace gown—and a 50-carat Neil Lane diamond.

Marisa Tomei upped the drama in a vintage satin Lily et Cie 1950 Charles James Couture gown with over a hundred yards of lavender and navy tulle layers.

Mandy Moore, a Best Song performer, walked the red carpet in a glamorous Monique Lhuillier creation with an illusion neckline and a generous scattering of sparkle.