Diamonds for investments

[geetrue]

I have always been interested in diamonds, not on my finger or for vainity reason, but as an investment.

I can't afford a polished and cut stone, but I found (five years ago) rough cut diamonds for under $100 a carrot ...

Cut and polished = $3,500 t0 $5,000 depending on clarity and color.

I was just wondering if anyone on the forum had any interest or experience in how to purchase, cut, polish, sell diamonds ...

I have already done some homework on google and found this wonderful site:

http://www.pricescope.com/

but I feel more comfortable asking ya'll before I venture into their domain.

I would need more than just money and desire of course ...
diamond cutting tools are probably not very cheap, a scope,
vise, pliers, tools, safe place to keep them, etc., but I got the yen