I gave her a wedding ring. Oh, and a house. I bought the house a month before we married then worked together with her parents fixing it up a bit prior to the wedding.
Hoestly I think an additional gift is not mandatory. But, if I was going to get one I would aim for something with a lot of meaning rather than something shiny with a big price tag. Like something that was passed down in your family or something that has a connection to how you met or how you fell in love.
