I get that one from my friend who is farming with that guide.
You need: Good friend who can borrow you his account, Normal Flying Mount (for 400g per hour. For 1000g, you need Epic), Mining 375
1) Force your friend to make Jewelcrafting skill 375
2) Go to outland, mount yourself and go find Adamantite Ores
3) Log in to your friend's account (you must have got 2 WoWs opened) and trade him Adamantite Ores.
4) Prospect that ores and trade items from ores to your char (and adamantites what left too)
5) Put that items on auction on smallest price
6) /2 In auction - [-----] - Cheapest on server!
7) Enjoy golds