what gen of inari's beads do i need to get the sword?

[Eragon25]

Does it matter which inari's beads I get in order to get the blue sword?  

[fillabunny2]

All generations of Inari's Beads are done evolving, so they all have the sword now.

If they weren't done evolving, they would all still eventually have the sword. Later gens are numbered based on the number of evolutions the first gen had undergone before they were bought. So if Inari's Beads had already had one evolution and I decided to buy them from the cash shop, I would be getting a second gen and it would always be an evolution behind the first gen until they both completed.

(I hope that made sense. It's hard to explain :b)