If you ever win an Oscar, don’t let it out of your sight. That was the lesson on Sunday night, when Frances McDormand saw her freshly engraved statue for best actress stolen for a short time at an Oscars after-party.

“After a brief time apart, Frances and her Oscar were happily reunited,” Simon Halls, a representative for Ms. McDormand, said in a statement on Monday. “They celebrated the reunion with a double cheeseburger from In-N-Out.”

A man accused in the theft, Terry Bryant, of Los Angeles, was in custody on Monday afternoon, a Los Angeles Police Department spokeswoman said on Monday.

Mr. Bryant, 47, faces a charge of grand theft, which in California is a “wobbler,” meaning the crime can be prosecuted either as a misdemeanor or a felony, a decision left up to the district attorney’s office. A felony grand theft conviction could mean up to three years in jail. He was being held with bail set at $20,000.