Discharge-gas-filled discharge cells C each having a phosphor layer 7 formed therein are formed between a front substrate 1 and a back substrate 4. A display discharge is produced between paired display electrodes X and Y and an addressing discharge is produced between the display electrode Y and an addressing electrode D in each discharge cell C. In such a plasma display panel, a diamond-containing layer 17A made of a diamond-containing insulation material is formed in a position where the addressing discharge between the display electrode Y and the addressing electrode D in each discharge cell C is produced.