Alright, after writing down a few numbers yesterday, today I'm attempting to speculate on the volatile Diablo AH commodities market.

Yesterday I watched as regular commodities like Tomes of Jewelcrafting, Tomes of Secret, Exquisite Essence, and Flawless Emeralds made big moves up and down in price.

Between 3pm and 10pm I saw these highs and lows...

Flawless Emerald - Low 1979 - High 2461
Exquisite Essence - Low 720 - High 958
Tome of Secrets - Low 788 - High 894
Tome of Jewelcraft - Low 1000 - High 1226

Obviously these depend on when people are trying to sell, and when people are crafting. I would tend to expect lower prices in the mornings (everyone dumps on AH before logging) and higher prices at night (when people would actually be on, buying and crafting)

This morning I checked the same items, and Tomes of Jewelcrafting were selling at 776. Needless to say, I bought a couple hundred for now (due to current funds, and risk). But as long as the price gets back over 893, I'll turn at least a meager profit on each one. And if it gets to 1200 again... I'm looking at a ~250 Gold profit for each Tome. 50k gold just like that.

Of course, as I get more comfortable with this, and make more gold, I can make bigger and riskier purchases, to make gold even faster.