PC on a Zoldark's Focus

Green focus drops from Zoldark The Unholy:

Energy +12 (requires 9 Soul Reaping)
Halves skill recharge of spells (Chance: 10%)
Energy +15
Energy regeneration - 1

Anybody has any clues on how much it could be worth?

Thanks inadvance

Bought one for 1200 from Guru Auctions.

(Leaving this here so there's at least some answer for people who actually use Search )