Yees i know this might have been posted a ton of times.
the mothod is pretty simple:
Buy Saronite ores + Eternal earth
Prospect ores -> craft rare gems > sell rare gems
Make Crystal Citrine Necklace+Bloodstone Band+Crystal Chalcedony Amulet+Sun Rock Ring > Dissenchant > sell mats =)
BUT ! i made a simpel excel dokument wich you can change around pretty fast to match your acution house and se how much you can earn on it =)
here it is :
http://rapidshare.com/files/229424647/JC_Enchanter_profit2.xls