Coal King, not sure if this is helpful to you or not... I was trying to track diamond sales a couple of weeks back and mickqld passed this on to me... interesting industry reading if you have some time to wander through and i am sure you will find some links to charts/prices somewhere... if you do please let me know, as I had posted something really similar on the commodities thread a few weeks back!
There are some interesting article on that site (in the news section about the industry indicating its standing pretty solid so far!)
