Diadem question

[Kronto]

Ok, so i've seen alot of talk about Diadems around here. I understand they have a Magic Level, which affects the possible mods, affixes, or something.

Now, I found a three socket ethereal one. This seemed like it could be awesome. Or maybe I don't understand this yet. Would this be good for an imbue? Or for a runeword? Or just put gems/jewels in it for a merc or MF?

[lionheartthebrave]

Well you can't imbue it, as it has sockets

If you're rich enough, you could make a Delirium runeword for your merc, to give insane crowd control

[Hrus]

This is not something to be worth anything. Usually rare circlet/coronet/tiaras/diadems can be godly (or some magic ones).
Diadem has highest magic_lvl, so each diadem can get every affix, that's why they are usually used when rerolled ilvl does decrease with 6pskull rare diadem reroll, but it still can gain all the affixes.

[krischan]

I'm nitpicking a bit here, but a diadem can get any affix because it has a very high base qlvl (85). The magic_lvl is still essential to make it undergo a more advantageous affix level calculation procedure, but a magic_lvl of 5 would be enough for getting any affix while it actually has one of 18.