Depending on the climate, or the strength of the sun. 
If a new look is desired, use Kiwi Black Leather Dye with
 the sponge applicator. Apply dye and then wipe off with a
 lint free paper towel or cloth. The Dye will not discolor studs. 

The Dye will cover any visible wax that was miss-applied 
when polishing the Studded or Jeweled Styles.