I know it has been documented a couple times in the guides section (which is now gone) and this is just another variation of the saronite shuffle but I thought I'd post a <a href="http://www.wowconfidential.com/profe...rofit/">little case study</a> I did the other day.
Quick summary of the method
Buy up green gems - chalcedony, sun crystal, huge citrine, bloodstone for 1g each from AH
Buy eternal earths and crystallized earth for under 50s each (eternal earth = 5g each)
Craft these items into:
Bloodstone Band – Bloodstone
Crystal Chalcedony Amulet – Chalcedony
Crystal Citrine Necklace – Huge Citrine
Sun Rock Ring – Sun Crystal
They all sell for 3g 14s 78s each to vendor, and if you can make your total cost under what I posted above (2g each) you'll be getting 1g14s78c profit per craft, 5sec to craft each = 720 made in an hour = 826g/hour
I have been fortunate on my server to get eternal earths for 2g each = 0.2s or 0.4s bringing my total cost to 1.4g each = 1,258g/hour profit
Greatest thing about this gold making method is that it's instant profit and can be done while completely afk.
You can read my case study on <a href="http://www.wowconfidential.com/profe...ofit/">selling jewelcrafting items to vendor for profit</a> here where I posted some additional information like macros to sell to vendor in bulk, automailing these items to your alt to Disenchant etc..
I know DEing these items would probably yield higher profit but I don't have an enchanter atm and this can be done by jewelcrafters alone.