Richard Rice, a senior art consultant with Galerie Michael in Beverly Hills, says the collection is worth millions.
"These are all in the high six-figure into the seven-figure price range. They're very, very sophisticated," Rice said.
However, without proper certificates of authenticity or a track history, the paintings will be nearly impossible to resell for anything near what they're really worth. In fact, most of the high-profile pieces stolen around the world have been returned because they couldn't be resold.
Experts think these thieves will run into the same road blocks with this collection.
Police say the owners of the artwork have put up a $200,000 reward for the return of the paintings.
Anyone with information about the theft is urged to call the LAPD at (877) LAW-FULL, or (877) 529-3855.