Does  Primordial Eminence stack? Golemancer

Hi

I have found some info on this forum but it doesn't satisfy

I have 3 Primordial Eminence, Viridian Jewel on my skill tree, - do they stack togather?

Lightning golem
1.___I know that value that has relation to granting cast speed by 5 golems is not stacked for my char. Is it true? :)
2.___But this jewel gives 30% increased effect of buff granted by my golems that means that the character damage should increase bcoz of cast speed increasing by lightning golem for 30%.
When inserted (new Primordial Eminence), i can't see that char's damage is increased. Whereas when i insert faster-cast-speed-gem,- the damage of my char is increased (on tooltip)
3.___Adding the second and the third Primordial Eminence, does it increase new cast speed and armour to golems?

wiki:

Primordial Eminence
Viridian Jewel
Golems have (16-20)% increased Attack and Cast Speed
30% increased Effect of Buffs granted by your Golems
Golems have +(800-1000) to Armour
Primordial

Thanks

PS
1.___
2.___
3.___
pls

Yes to all 3. If they didn’t want it to stack then there would be a limit of 1 for the jewel. You can only ever benefit from each of the golems’ buffs once. This means an Elementalist with Elemancer, Golem Commander, The Anima Stone, and 3x Primordial Eminence would end up with 6 golems with 560% buff effect. If using 6 different golems, you get 6 different buffs.