Jennifer Love Hewitt (AP file photo)

Jennifer Love Hewitt has sparked rumours she is to marry boyfriend Jamie Kennedy - after the couple was reportedly spotted shopping for engagement rings.

The actress has been dating her Ghost Whisperer co-star since her split from fiance Ross McCall late last year.

And Hewitt, 30 - who met Kennedy on the set of the hit U.S. show - is said to be close to walking down the aisle with her new love, according to U.S. newspaper the Chicago Sun Times.

A source tells the publication the couple recently bought each other "love bracelets" from luxury jewellers Cartier, but "they've also been shopping for an engagement ring for Jennifer."

The inside adds, "She is simply a girl who always needs a man in her life and is getting nervous that she may miss out on marriage and having a family.''