I don't think most were for the regulation of the prices, Xaldyn, but more for the preventing of reselling.
Alright well my suggestion to the powers that be would be this:
Add a tab in the currency section for diamonds bought specifically from the AH. This way you can't resell them.
They can't add all diamonds purchased from GF to this tab though, because no one should be "punished" we'll call it for doing that, if they wanna resell their GF pught diamonds in the AH at a later time.
What I mean by that is the following scenario:
Let's say John Q. Anybody buys $20 dollars worth of diamonds from GF. Great, thank you for your purchase John, enjoy your "unbound" diamonds (as it currently stands). Well a little later Mr. Anybody is perusing the AH and notices some diamonds for sale at a nice price, and decides he wants to buy a few of these "bound" diamonds, but he's worried that if he does, it will make all his "unbound" GF bought diamonds "bound" in the process. I don't really see that as fair.
RW would have to put in a way to separate the "bound" and "unbound" diamonds. So again, perhaps a currency tab like we have now for Energy of Justice, Mentos, etc.
In addition to adding this "diamond tab" RW would have to add the ability to be able to spend both your "bound" and "unbound" diamonds at the same time.
For example if John Q. Anybody wants to buy a mount for 299 diamonds, and he has 200 "unbound" diamonds and 99 "bound" diamonds, the system would have to still recognize that he actually HAS 299 diamonds TOTAL and not just see that he has either just 200 or just 99.
LASTLY IN ADDITION, they would have to have the system determine which diamonds you're spending.
For example, John Q. Anybody (he's quite the diamond connoisseur as you can see) wants to buy some plussing gems (the 5 pack wing plussers for 99 diamonds lets say.) The system will either need to be able to ask "Do you want to spend the diamonds from your currency tab, or from your normal diamond pool"
-OR-
Given that J.Q.A. has diamonds in both his "bound" currency tab and his "unbound" diamond pool, The system will have to just be very clear upfront that if you buy something from the IS it's going to come specifically from your currency tab or specifically from your normal diamond pool
phew..hopefully that was an understandable suggestion followed with understandable solution ideas >.< Had to reread it myself to make sure I worded it correctly and even then...lol xD