Its a nice gift. FYI, tiffany's is well worth the money... Its not just a name thing. Everything Ive bought there has been such great quality and so nice looking. As for me, my now wife, just got her jewlery..

She really wants one of those sonic jewelry cleaners that she can just drop her rings into and clean really nice. Shes also into road biking, so Im going to get her a road bike trainer that allows her to do indoor training (shes been dropping hints). Other than those two, probably just some little things...One of her earrings I got her for her bday fell out and she was pretty upset, so i'll probably pick her up another pair. I like your idea though. Its nice. I think a winner.
max