You want ceramic to look like marble?
Got it!!!! This is a joke right?
If you didn't buy it shiny you ain't gonna make it shiny. You could wax it but if you do you are venturing into a regular ongoing maintenance task that you may or may not want to deal with. You can't expect a glazed ceramic tile to hang onto any type of coating for very long if that's what you have.
It would be more helpfull to know exactly what you have.