First off, allow me to do a little dance in honor of this, my 200th post. /dance Okay, now on with the actual post.
With epic gems being so heavily gated at the moment the supply is very limited and prices are quite high. Now, as a relatively wealthy raider I've spent a fair amount of gold on these gems to give myself stat boosts here and there in my new gear.
But I have a problem, and it looks something like this:
Let's say I'm a frost DK. Frost DK's look for Strength/Haste with their orange gems, aka Fierce Lava Coral. While there are four orange gems for me to choose from on the AH three are completely useless to me. I have to buy the uncut piece for 9.8k if I want to buy a Lava Coral while the Fine, Reckless, and Deadly sellers have completely missed out on any opportunity to sell to me.
This is mostly a plea to those who have cut these Fine, Reckless, and Deadly Lava Corals and to any JC who is pre-cutting their gems to sell: Please don't.
I am currently in the market for two Queen's Garnet since I owe them to a friend who traded me some gems I needed on the first day of the patch. I would pay 10k each for these Queen's Garnets just to pay my friend back promptly. But I cannot because he is a warrior and everyone's pre-cutting their Queen's Garnets to Brilliant and selling them for 5,000g. That person could have had 10,000g per gem but instead, by pre-cutting their gem they missed out on every bit of my gold.
When there is a plethora of supply and JCs to cut that supply you are effectively selling the service; the gem is more expensive cut because anyone can go get an Inferno Ruby but not everyone can cut it.
When the supply is this low you are no longer selling the service. The service is an afterthought, a 10g tip in Trade for most people. The value is not in the cut or the profession to cut it, it's in the item itself. It's this value that you diminish drastically by cutting the gem. By pre-cutting a gem into anything you are narrowing your pool of potential buyers significantly and completely alienating many buyers like myself.
Please give a thought to this for any item you selll, but particularly for hard-to-come-by item enhancements and consumables like this. While cutting a gem isn't necessarily the worst idea it's important to recognize just what you may be doing to your buying pool by doing so.