Alexis Bledel's publicist says the U.S. actress is engaged to marry actor Vincent Kartheiser after dating him for about a year.

Bledel's representative confirmed the happy news to Wednesday.

"Vincent proposed a few weeks ago. She's been wearing her ring. It's huge," an insider told the celebrity news website.

"They couldn't be happier," a second source said.

Bledel, 31, is best known for her work on TV's "Gilmore Girls."

Kartheiser, 33, is a cast member of the drama series "Mad Men."