Need help pricing this jewel in Bestiary Standard

The closest thing to this is on poe.trade for 4 exalts:
14% increased Physical Weapon Damage while Dual Wielding
+10% to Global Critical Strike Multiplier
4% reduced Mana Cost of Skills
+16% to Critical Strike Multiplier while Dual Wielding


Let me know what you think.

Thanks!


edit: apparently I don't know how to link images properly :)