Terror Zone Loot Filter

[rosebl]

I've been running Terror Zones almost every evening in Ladder, and I noticed that my stash fills up with charms, jewels, flawless gems, and low runes long before I find anything truly valuable. For players who farm Terror Zones mainly for trading, what is your personal pickup filter?

More specifically:

Do you still identify every rare ring and amulet, or only certain item levels?
Which charms (small, large, grand) are always worth keeping even before identifying?
At what point do you stop picking up gems below Perfect quality?
Are there any white or gray base items that people often ignore but still trade well this season?

I'm trying to make my farming sessions more efficient without accidentally leaving behind items that have consistent trading value. I'd appreciate hearing what experienced traders actually keep and what they leave on the ground.