Get your crafting to about RuneScape level 25 crafting and 20 smithing and mining. Then mine silver and make into bars. The bars also sell for 400 Runescape money per bar. Then go to the crafting place in al kharid and buy a tiara mould for 100 RuneScape gp.

Then you got to the bank, grab all your silver bars you have, then go and smelt some tiaras. Then get a fire talisman and go to the fire temple just north of the duel arena and power up each tiara to make \"Fire Tiaras\". Then if you are in the right world, these tiaras should sell for about 2k-5k RuneScape Gold. Also if you are a member make steel bars and make cannonballs (4 cannonballs per steel bar), they sell about 400 RuneScape gp per cannonball.

Or get a high level person such as the number seven, "thehate" (who my step brother did this for) and law run for them. This is where you get the high level person rune essence, you give them it and they make you law runes. You then carry on that procedure and then sell the laws for about 500gp-1k RuneScape gold!!

Happy money making!