Abstract: A grill pan has a diamond grill forming at least a portion of its cooking surface. The diamond grill may provide a diamond grill pattern on cooked food products without having to turn the food products in a 45 degree angle to make a diamond pattern. The pan may have a diamond pattern raised from a bottom, heat application side of the pan. The pan may be made from cast iron, enamel coated cast iron, or stainless steel. In some embodiments, the pan may be made from cast iron containing from about 1.7 to about 4.5 percent carbon.