Sell it! If it's just been in a box, better to let it go to someone whose life has a place for it.
Personally, I don't like fine china. It takes up space, is only used once in a while and is pricey. I loooove my basic porcelain Crate and Barrel dinnerware. It's simple yet elegant and fine for daily use or special occassions.
If you don't sell it, use it! Use it for everyday and just put it in the dishwasher. The gold (if it has gold) will slowly wear off, but hey, at least it'll be getting some use.
Mom to DD1 (11/1999), DD2 (07/2003), and DS (11/2012), all born at home and cloth diapered.