This is common sense buts meybe some of you doesnt know it already so im going to post these little tip. IT´S SERVER DEPENDANT.
just buy five Ethereal Shard and turn them into one Sha Crystal, on my server Ethereal Shard are for 50g and i sell Sha Crystal for 500-600g:
600 - 50X5 = 350 profit doing nothing
you can just do this one a day.
sorry for my bad english