In the movie Gentlemen Prefer Blondes, Marilyn Monroe famously said, “Diamonds are a girl’s best friend.” The diamonds she sang about in the movie can now be yours, along with a number of other exquisite old Hollywood baubles, thanks to Julien’s Auctions, with items going to the highest bidder.

At the end of this month, Julien’s in Beverly Hills is expected to sell Vivien Leigh’s diamond and amethyst necklace from Gone with the Wind and Marilyn Monroe’s gold-plated bauble earrings from Gentlemen Prefer Blondes for between $77,000 and $103,000.

More than 500 items from movie legends like Marilyn Monroe, Elizabeth Taylor, Judy Garland, Rita Hayworth, and Grace Kelly are up for auction.

When it goes on sale, the collection is expected to bring in between £1.6 and £2.4 million, according to Julien’s spokeswoman Caroline Galloway.

Many of the lots were found in a warehouse in Burbank, California, by Mr. Eugene Joseff’s family after he passed away in 1948.

A cigar case used by Clark Gable in Gone With the Wind (1939), a pair of earrings worn by Marilyn Monroe in Gentlemen Prefer Blondes, a brooch worn by Marlene Dietrich in Shanghai Express (1932), a pair of earrings and ornaments worn by Greta Garbo in Camille (1936), and more are among the other items up for auction (1953).

The 1940s “Eternally” ring, a sign of love between Leigh and Laurence Olivier, and a charm bracelet brought a relatively reasonable £25,000 each at a recent auction of the Vivien Leigh Collection at Sotheby’s London.

Before moving to Hollywood in 1928, Mr. Joseff, a native of Chicago who had worked in advertising, was able to establish a network of designers, celebrities, and studios thanks to his outgoing nature.

He experimented in his garage as a self-taught jeweler and came up with a unique plating method that reduced the glare from harsh studio lighting.

After researching historical publications and books for ideas, Mr. Joseff established Joseff of Hollywood and quickly earned the title “Jeweler for the Silver Screen.”

With a tight budget, he began renting out his works to studios to make more money, and inadvertently began a custom that is now standard for A-listers attending award shows.

Mr. Joseff was brash and would call trade publications like Variety to learn what movies were in development, then he would call the studios and offer to make jewelry for them.

Having the pieces allowed him to take them apart and reassemble them for use in another movie.

After Mr. Joseff passed away, his wife J.C. took over the company and ran it until her death in 2010, during which time she was honored with a lifetime achievement award by the Women of the Motion Picture Industry.

Eugene Joseff “hands down” transformed the way jewelry was utilized in movies, according to Rosalie Sayyah, a costume jewelry specialist who works on the American Antiques Roadshow.

“He was also a marketing genius and a perfectionist. He manufactured his own jewelry because the manufacturers told him: ‘You can’t make this look as good as you want it to be,’ so he did his own thing,” she reported.

According to Keats, purchasers should be aware that with items like this, it is often the prior owner who is of interest more than the materials.

However, despite the fact that they may not contain highly sought-after gems, such artifacts have obvious appeal since they capture a little portion of the glitz of the person who wore or possessed them. Additionally, celebrity may be just as seductive as money.