NB: There is no fixed price when it comes to diamond cutting, its best you bring the rims instore and the technician can evaluate them.
What is a diamond cut wheel? This is an alloy wheel which has been put on a lathe and part of or the entire painted surface of the wheel machined off to leave a shiny alloy finish. A small part of the actual alloy is machined off to create this finish. It is then lacquered over to prevent corrosion.