@Lihaassa
I bet that this province is full of magical and powerful sites, which will provide you incredible mages and lot of gems. it is easy worth the 10 gems (I hoped you gave something like 20 or 25, more as a diplomatic gift !
).
As I already said, I cannot trade astral gems on a regular basis. And Grijalva is asking too for it. I will let you know both as soon as I get something like 20...
@Finalgenesis
This army is the one which has travelled in my lands for several months. It turned back to evade, will be reinforced by some more Smiths next turn then will probably attack again... I am preparing myself against it. Thanks. Do not bother with it.