There are a few things to consider with lettering. Color of granite, type of engraving, and font choice. In the image viewer you can see the many examples of lettering style. Below is a reference to the styles.
V- sunk letters in a panel (an area where the polish has been removed) are the easiest to read and work well on all granite colors.
Polished edge letters are created by leaving a polished edge around a v-sunk letter in a panel this work well on darker granites.
Frosted outlined letters are created by frosting the letter and blasting a deep line around the frosted surface. This works best on dark granites.
Skin cut letters can only be produced on certain dark granites. Created by removing the polish.
More styles and fonts are available!