Well I've been browsing mmoC and i've stumbled upon something on the updates that I think should not go unnoticed.
The update for patch 4.0.1 :
* Transmute: Ametrine, Transmute: Cardinal Ruby, Transmute: Dreadstone, Transmute: Eye of Zul, Transmute: King's Amber, Transmute: Majestic Zircon had their cooldown removed, you might want to assume that this will be the case when 4.0.1 goes live.
Saying this I highly suggest you all get your alchemy toon out or get a friend you trust that would be willing to make them for you.
I suggest buying out all Fire Eternals and Scarlet ruby's to make cardinal ruby's.
You only need 1 of each for a Cardinal Ruby and if your quick on the ball you can sell all the gems cut or uncut for a decent profit just make sure to sell them before cataclysm comes out