It depends. Because grave markers are available in a range of materials, styles, designs, and sizes, prices vary widely. To give you a price range for popular the choices, a granite grave marker costs between $200 and $1,800 for a single size, and range from $600 to $2,500 for a companion size. For a bronze grave marker, it can cost between $600 to $2,500 for a single size and $1,500 to $3,000 for a companion size.