Attach a diamond blade to the tile wet saw. Fill the saw's reservoir with clean, fresh water.
Use a tape measure and pencil to mark the location of the cut on the top surface of the paver, near the paver's edge. Place a square over the mark and butt the square's tongue against the paver's edge; the "tongue" is the small leg of the square. Run a pencil along the square's edge and through the mark to lay out a line across the length of the paver; you will cut the paver along this line.
Put on safety goggles and insert ear plugs into your ears; you must protect your eyes from flying paver shards and your ears from the dangerously loud sound of the saw.
Place the paver on the tile saw's table and align the laid-out line with the saw blade. Release the saw's cutting guide, also called a "rip fence," and slide the guide against the edge of the paver. Lock the guide in place and remove the paver from the saw table.
Plug in the saw's power cord and switch the saw to the "on" position. Place the paver on the saw's table and butt the paver against the cutting guide. Slowly and firmly push the paver through the rotating saw blade. To keep your fingers a safe distance from the blade, use a short stick to push the final portion of the paver through the blade.