In the latest Aion’s patch 2.0 new unique quality godstones was introduced. All mobs with level above 51 can drop it.

You are welcome to check theirs properties.

Godstone: Ereshkigal’s Honor
Godstone: Beritra’s Plot
Godstone: Fregion’s Trick
Godstone: Meslamtaeda’s Greed
Godstone: Nezekan’s Advance
Godstone: Lumiel’s Intervention
Godstone: Kaisinel’s Fantasy
Godstone: Fregion’s Stratagem
Godstone: Zikel’s Arrogance
Godstone: Tiamat’s Counterattack
Godstone: Tiamat’s Fury
Godstone: Meslamtaeda’s Greed
Godstone: Meslamtaeda’s Regret
Godstone: Marchutan’s Impartiality
Godstone: Triniel’s Rationality
Godstone: Yustiel’s Generosity
Godstone: Vaizel’s Vow

Source: Unique godstone w 2.0 na Korean PowerWiki.