Green items are random items that give percentage-based bonuses.
SWC
Sir Edmund:"Should you obey the lord who asks you to put a village of innocents to the torch? Is that chivalrous? Is it noble?" Me:"It's a great way to get promoted, I know that much."
In the manual they say that green items are of the "rare" quality, just below epic but sometimes a good rare item with mods you need is better than an epic item if you put a charm in it.
A huuuuge Titan Quest, Diablo II, Warcraft III, and Call of Duty 2 fan