And, reports CBS News correspondent Bill Whitaker, this isn't the first time the troubled actress has been accused of stealing a valuable item.
A crowd of cameras captured Lohan, 24, making a Hollywood entrance at a Santa Monica, Calif. courthouse Wednesday, facing a new judge and new criminal complaint that could land her behind bars for up to three years.
Through her attorney, Lohan pleaded not guilty to stealing the necklace from an upscale jeweler. She was photographed wearing it. She says it's all a misunderstanding.
Los Angeles Superior Court Judge Keith Schwartz warned her she's now facing a felony, and said he won't tolerate more bad behavior. "What I'm telling you," he said, "is that you need to follow the law just like everybody else. … You're no different than anyone else, so please, don't push your luck."
Lohan has been accused of stealing before, Whitaker points out. In January 2008, she was spotted in an $11,000 mink coat. The coat's owner claimed Lohan took it from a New York club. Like the necklace in this case, the coat was quietly returned.
Last April, Whitaker notes, Lohan was caught on-camera wearing a missing Rolex valued at $35,000.
Lohan wasn't charged with a crime in either case.
She's now violated her probation stemming from a pair of drunk driving arrests in 2007, and Schwartz told Lohan if she breaks the law again, he'll lock her up without bail.