"The Fighter" actress wore a Cartier platinum and diamond Haute Joaillerie secret watch bracelet, which featured a 30.75-carat carved emerald and 575 diamonds. The bracelet is worth $1.025 million.
Adams also wore a pair of platinum and diamond 2-carat stud earrings, worth $35,000 and a Cartier platinum and diamond necklace with carved 33.24-carat emerald, worth $290,000.
Unfortunately, Adams lost the Best Supporting Actress award to co-star Melissa Leo, who let an F-bomb fly during her acceptance speech.
"I'm just shaking in my boots here," Leo said. "Yeah, I am kind of speechless. When I watched Kate [Winslet] two years ago, it looked so much f**king easier."
Backstage, Leo was quick to apologize for her obscenity. "I had no idea. This word ... I apologize to anyone that they offended. There's a great deal of the English language that is in my vernacular. I really don't mean to offend, and it's probably a very inappropriate place to use that particular word."
If you want to see more of jewelry on the red carpet, check out this POPSUGAR video below: