I predict your inexperience will soon end!
Chainmail science ain't exactly rocket science, so you'll be able to pick this up pretty easy.
As you're a jeweler, I suppose your maximum ID ever, in a suitable wire diameter, would be somewhere around 3/8". Suitable wire would measure anywhere between 16ga's .063" to .080" for 14ga -- in SWG anyway; aluminum and other metals in that range would also suit nearly anything you're likely to begin with. Your minimum etcetera I'd guess at about 1/8". That ID, wire in proportion, produces a very fine-textured mail, pleasant in the hand. And of course, with butted stuff, if you don't like what's coming out of your weaving, you can easily disassemble and start over. Music, and for some people video, makes this less tedious so it's not a biggie.
I've never woven E4-1 at its minimum possible AR of 3.2 -- it's much less flexible there. AR 4 is far handier all round, particularly for shirts of mail.
If mail teaches a young person nothing else, it will teach patience and even a little discipline.