The song says that "a kiss on the hand may be quite continental, but diamonds are a girl's best friend."
That's certainly the case for Rachel Weisz.
Asked at Cartier's recent 100th U.S. anniversary party about the most memorable gift she's received, she first started to talk about earrings given to her by her fiancé, director Darren Aronofsky before correcting herself and opting for her engagement ring - a 1920's vintage Cartier.
Eva Mendes also opted for the sought after rock - she was leant a diamond spotted Cartier Panther ring for the party, leaving her own locked up in her safe at home.
But not all the ladies we talked to said their most memorable gift was diamonds.
Martha Stewart opted for golden pearls, while designer Nanette Lepore admitted that her daughter, Violet, was her most precious gift.
Meanwhile, another designer, Zac Posen, revealed that his most memorable item "was two lion claws" given to him by celebrity pal, Ashley Olsen.
APTN