Glacial Diadem of Life Everlasting

I've got a Glacial

Diadem of Life Everlasting, 3 to Cold Skills, Damage Reduced by 21, with 2os (Thanks

Larzuk! Woo!), and 57 defense.

I know this is a perfect

Helm for a cold Immortal Sorc. Problem is, I don't have one, and historical prices for this kind of thing is hard, since a lot of people don't know what they're selling and get massively lowballed on Immortal Sorc stuff. You'll see folks asking multiples of

Jah for a perfect

Gerke's Sanctuary and then turn around and see one for a few

Perfect Gems. So, I'm not sure what to ask for this if I end up selling it.

Any help is greatly appreciated!

Not much, 21DR is low (max is 25).
The meta is immortal

Nova sorc because ES is in light skill tab so you get higher level of ES with light skiller.

PS:
That being said perfect Gerke is way overpriced.
Only allRes and DR are perfect, that Gerke worth only 1 HR.
With 20jah, you can buy one with perfect MDR.

Thank you both for the appraisal!