Cameron Diaz
Cameron Diaz wore this $1 million Tiffany & Co. diamond necklace to the 2012 Academy Awards.
Gwyneth Paltrow
Gwyneth donned a $1 million Anna Hu Haute Joaillerie cuff bracelet made of 2,368 rose-cut diamonds to the 2012 Academy Awards.
Giuliana Rancic
Guiliana Rancic wore a $1 million Forevermark diamond ring to the 2013 Emmy Awards.
Amy Adams
The actress wore a $1.025 million Cartier platinum and diamond emerald haute joaillerie secret watch bracelet to the 2011 Academy Awards. The bracelet featured 30.75-carat carved emerald and 575 diamonds.
Angelina Jolie
Angelina Jolie wore a pair of $2.5 million, 115-carat emerald drop earrings by Lorraine Schwartz to the 2009 Academy Awards.
Kate Winslet
The actress wore a $2.5 million yellow diamond Tiffany & Co. necklace to the 2010 Academy Awards. The art deco style necklace was created exclusively for Kate.
Jessica Alba
Jessica Alba wore a $5.8 million Harry Winston diamond cascading drop necklace to the 2013 Golden Globe Awards.
Nicole Kidman
Nicole Kidman donned a $7 million L'Wren Scott custom-designed diamond necklace to the 2008 Academy Awards. The necklace featured 7,645 diamonds and totaled 1,400 carats. It took a reported 6,200 hours to hand craft.
Anne Hathaway
Anne Hathaway wore a $10 million, 94-carat Tiffany & Co. Lucida Star diamond necklace to the 2011 Academy Awards when she co-hosted with James Franco.
Gloria Stuart
Gloria Stuart wore a $20 million, 15-carat blue diamond necklace by Harry Winston to the Oscars in 1998 when she was up for Best Supporting Actress in Titanic. It's one of the single most expensive pieces of jewelry ever worn to the Academy Awards.
Carrie Underwood
Carrie Underwood wins the most expensive bling award for the $31 million diamond necklace by jewelry designer Jonathon Arndt she wore to the 2013 Grammy Awards. The necklace featured a whopping 381-carats of oval, pear, marquis and round brilliant white diamonds.