Hello,
Atm Primordial Saronite is in a huge demand because of the new recipies and the legendary axe that requires huge amounts of it. Everyone seems to be looking for it atm. So there is some money to be made if you know how to play with the market:
What I'm going to tell you works wonders depending on the price of Primordial Saronite on your specific Faction. This might be very server specific, tho so it might not work everywhere.
Here is what you're going to do:
1. In case you don't already have a little Spy-Char on the other fraction make one and move it to the auction house in one of the capital cities.
2. Check out the price for Primordial Saronite. On my server the Primordial Saronite is about 500g more expensive on the alliance side compared to the horde side.
3. If Primordial Saronite is way cheaper on your faction that on the opposide faction then buy some (either ask in trade chat to make an even better deal, or buy it directly from the auction house)
Or if the price on the other fraction is way cheaper transfer some money using the neutral auction house (put up an item for an extremly high price on the opposite fraction and buy it with your main faction toon). Buy then as many Primordial Saronite as possible.
4. Now you have 2 options:
4.1. The risky but more profitable option: Transfer Primordial Saronite through the neutral auction house. You need to have 2 accounts for this and being extremly quick while buying it. You'll want to sell it to yourself extremly underpriced in order to avoid the neutral AH cut which is quite high. I only recommend this if you can do it extremely quick. Also try to do it at night or early in the morning when not many ppl are online.
After you "bought" your Primordial Saronite from the Neutral Auctionhouse put it for sale on your faction side and undercut all other offers in the AH. Being the lowest listed seller your Primordial Saronite should sell extremely fast and you've made lots of profit.
4.2. The save but not so profitable option: Put the item up in the neutral auction house for a price that would be considered decent/cheap on the faction that has the higher price. Then log onto your char that's on that specific faction and advertise in /trade that you have cheap Primordial Saronite in the neutral Auction house. People will go and buy it soon afterwards. This option gives you slightly less profit because you have to pay the AH cut from the neutral AH which is quite expensive. But you can still make a decent amount of profit like this depending on your servers economy.
Enjoy it while it lasts!