PC on this nearly perfect shadowbow

can you please check the price on this rare bow? thanks
i realy don't know the price

Piercing Dmg: 15-28 (req. 11 Marksmanship)
Damage +14% (while Health is above 50%)
Lengthens Poison duration on foes by 33%
Enchantments last 20% longer

i hope someone can give me the price of this bow thanks

no1 knows =(