A marble cutter comes generally with a circular saw with a sharp blade. The first step to cutting is to prep the blades by moistening them. By this method, you can easily control the temperature of the blades and maintain their cooling effect. Then you can make a mark on the marble to fix the position you want to cut. After this, place the marble on a stable surface to prevent any scratches. You need to ensure to cut the marble by aligning it to the sharp side of the blade. After cutting, you can clean the cut side with water and sandpaper. This makes the edges smooth and properly finished. Tip - Make sure to wear gloves and eyewear while working.