PC on Grenth's Grasp/Yingko's Claw

Grenth's Grasp:(green)

Cold Damage 9-41
Damage +15%(Health above 50%)
Health+30

Yingko's Claw:(green)

Dark Damage 7-11
half skill recharge of curses 15%
energy+10
energy reg.-1

I can't find any prices on these....what's going on with these? Please someone help me here.