I'd go with jewellery if you can afford it or if she uses it. A nice and classic pair of earrings or a necklace would be nice . It doesn't have to be anything expensive, just something that she would be able to use for years to come.
It could also be something more sentimental. For example, an engraved photo frame for you guys to put your wedding picture on, or something along those lines. Or for example, a photo book with pictures of both of your and your family throughout the years. I would probably cry if I got that haha. There's some nice online places that let you assemble your own photo book and they print it and send it off to you. It would just be a matter of checking how long they take to arrive.