The 52-year-old paired her dress with an exquisite Bulgari necklace, previously worn by Liz Taylor herself, which sold at auction last year for a whopping $6.1million.
Given to the silver screen legend as a wedding gift from Richard Burton in 1964, the emerald green necklace was the toast of the evening.
Although there was no doubt Julianne was glowing, THAT necklace certainly stole the show. Drew Barrymore was also dripping with jewels as she arrived at the all-glittering event in a monochrome trouser-blouse combo.
Take a peek at all the pics in the gallery below: