Crafting. Crafting is a pretty easy skill which takes about a total of 7 hours to get to 99.
Where: Edgeville bank
Items: Chisel and atleast 500k
Requirements:
Sapphire: 1 crafting
Emerald: 40 crafting
Ruby: 60 crafting
Diamond: 70 crafting
Dragonstone: 75 crafting
Onyx: 90 crafting
Cape: 99 crafting
Items Made/Profits:
Sapphire - Amulet of magic - 2k profit
Emerald - Amulet of defence - 2.5k profit
Ruby - Amulet of strength - 4k profit
Diamond - Amulet of power - 3.5k profit
Dragonstone - Amulet of glory - 4.2k profit
Onyx - Amulet of fury - ??? profit to players
How to do:
Use your chisel on the stone to make an amulet. Sell the amulet to Herquin. [not Amulet of Fury!]
Where to get items:
Chisel - Herquin at shopping area
Uncuts - Dommik at Edgeville bank