Oscars 2010 Best and Worst Dressed

Sandra Bullock
Though she's had some hits and misses in the past, we have to say Sarah Bullock may have hit a new all-time high in this gold and silver Marchesa gown. It skims her body in all the right places, and is sexy and elegant at the same time.

Oscars 2010 Best and Worst Dressed

Mo'Nique
The lovely first time Oscar nominee wore an electric blue Tadashi Shoji gown for her big day. As for the jewels, Mo'Nique wore 90 carats worth of Chopard diamonds: Radiant cut yellow diamond drop earrings, and two yellow princess cut diamond line bracelets.

Oscars 2010 Best and Worst Dressed

Meryl Streep
The Oscars veteran wore an all-white gown by "Project Runway" alum Chris March. The dress featured a deep draped V-neck that showed a little skin without looking too exposed.

Oscars 2010 Best and Worst Dressed

Gabourey Sidibe
Gabourey Sidibe couldn't stop gushing about her off-shoulder grape-blue Marchesa dress to Ryan Seacrest, claiming that if the Oscars were porn, "this dress would be the money shot." We're glad you felt gorgeous, Gabourey!

Oscars 2010 Best and Worst Dressed

Penelope Cruz
The stunning star looked great in this berry red Donna Karan gown, and carried a special custom-made Roger Vivier bag (not shown) -- a Haute Couture Folies clutch designed by Bruno Frisoni with a Swarovski buckle and black ostrich feathers. Cruz continued this high fashion trend with some high-carat jewelry: Chopard's 18-carat pear shaped diamond drop earrings, a fancy cut 16-carat diamond cocktail ring, and three bracelets: an Ascher cut diamond bracelet, a diamond line bracelet, and an emerald cut gradual bracelet. The grand diamond total? 85 carats!

Oscars 2010 Best and Worst Dressed

Helen Mirren
Always elegant Helen Mirren wore a sheer-sleeved crystal-embellished Badgley Mischka gown. She really just gets it right time and time again.

Oscars 2010 Best and Worst Dressed

Anna Kendrick
"Up in the Air" actress Anna Kendrick looked young and fresh in this off-shoulder peachy-nude Elie Saab chiffon gown.

Oscars 2010 Best and Worst Dressed

Diane Kruger
Do you think Diane Kruger made Coco proud in this cream and black colored Chanel Haute Couture gown? This was a super fashion-forward look - not for the tame. The actress also wore a Jaeger-LeCoultre diamond bracelet timepiece for a little extra flash.

Oscars 2010 Best and Worst Dressed

Sarah Jessica Parker
Everyone's favorite fashionsta set a new standard for red carpet gorgeous in this yellow Chanel couture dress with silver rosette accents. It was definitely a bold choice (and so was the hair!) and we loved it.

Oscars 2010 Best and Worst Dressed

Jennifer Lopez
J. Lo wore a sculpture strapless, shimmery pink dress by Armani Prive. The extended side ruffle was tricky to walk in, and to pose in: From some angles it complemented her famous hips, from others it packed on some pounds. Of course, so did her Cartier diamond earrings, a platinum and diamond bracelet, and a white gold and diamond ring, collectively worth $284,450.

Oscars 2010 Best and Worst Dressed