Yes this would make more sense, and also explain why it looks beautiful. It's a reusable object of the Power, and a ter'angreal that can be used repeatedly.

I thought about this initially but I think it goes against Rand's quote that the process is time consuming. It also fits in with the way in which the Finns drained Lanfear and Moiraine, and how the technology may have originated from them.

Yes, but once again the quote about it being a time consuming process. I also believe that angreal of significant strength required several women, but considering I believe it took months, I can't imagine a circle being practical.

I think that mixed circles were unlikely. We've never seen an angreal or sa'angreal that can be used by both males and females, despite constant rumors in the books and the BWB. One also has to ask what the point of the saidin would be in a circle led by a woman to make a female angreal. The only exception I can think of is that it is about creating the 'lattice' inside the angreal and it is a structure like anything else - and therefore it is more about the mass of Power used rather than which Power was used. The leader of the circle could attune it to males or females perhaps?

I wonder if the production of a sa'angreal was similar to the production of the Eye of the World? Men and women did it but the taint killed them, but it gave strong channelers access to monumental amounts of saidin, much like a sa'angreal in some sort of way. The Eye seemed to be a hybrid between a well and a sa'angreal.

What we know from Rand is that Elayne's Talent is necessary but not in the initial stages, so I get the feeling that anyone can use a seed. It's the transference of the seed's power into an object needs the Talent in all likelihood.