The Rod of Cancellation, market value of 11,000 gp diamond, states to recharge one, you must burn a wish spell, which requires a diamond worth 25,000 gp.
Isn't this a little egregious?
Or can wish be cast without burning the 25,000 gp diamond, like miracle?
Wouldn't a limited wish be better in line, with a 1,500 gp diamond?