Antiques, Art, Vintage She may have sung that diamonds are a girls best friend, but Marilyn Monroe proved that true brilliance comes from within. In Gentlemen Prefer Blondes (1953), she lit up the screen as Lorelei Lee The 'Diamonds' Dress is a Girl's Best Friend. Heather Lee Bea Did you know that Marilyn Monroe's Diamonds Are a Girl's Best Friend look in Gentlemen Prefer Blondes almost wasn't pink at all? Originally, Travilla designed a dazzling $4,000 showgirl costume covered