Yes, granite can be cut with a water jet cutting machine. Water jet cutting is a versatile cutting method that can be used to cut a variety of materials, including hard materials like granite.When cutting granite with a water jet, an abrasive material is typically added to the water to increase the cutting power. The abrasive material is usually a type of grit, such as garnet or aluminum oxide, that is mixed with the water and forced through a small nozzle at high pressure. The abrasive particles help to erode the granite, allowing the water jet to cut through it.The speed and effectiveness of cutting granite with a water jet depend on the thickness of the granite and the settings of the water jet machine. Thicker granite may require higher pressure and more abrasive material to achieve a clean cut, while thinner granite may be easier to cut.It is important to note that cutting granite with a water jet can be a time-consuming process, and the cost can vary depending on factors such as the size of the piece being cut and the complexity of the design. Consulting with a professional or the manufacturer of the water jet cutting machine can help determine the best approach for cutting granite or any other material.