Julien's Auctions said in a statement Sunday that the actress wore the jewelry when she attended the opening of "The Rose Tattoo."
Monroe did not appear in the film based on a Tennessee Williams play.
The price included a 20 percent commission for the auction house.
The buyer was a foreign collector. The auction house does not release the names of buyers.
The sale was part of a two-day auction of Hollywood memorabilia Friday and Saturday at Julien's Beverly Hills gallery.
A lighter used by Humphrey Bogart sold for $19,200, and a 1986 Pontiac Firebird owned by David Hasselhoff was purchased for $152,600.