Making Ring of stone (Cosmic rune, Fire rune, Earth rune)

Making Ring of stone (Cosmic rune, Fire rune, Earth rune) in OSRS: 1 × Onyx ring, 1 × Cosmic rune, 20 × Fire rune, 20 × Earth rune → 1 × Ring of stone. Profit right now: -751,825 gp after GE tax (input cost 1,600,309 gp).