YES necklaces would be nice, They already have shown us they have the ability to make them.
(But I secretly want the ability to dye my hair clips different colors first. I’m sorry if I’m in a red outfit my pony tail clip should be red…it’s just science!)
That is a nice little extra in FF14. You see your rings, earrings, and necklaces. It’s not huge, but it’s a nice touch.
In my case, as a Nightborne, my chest area is really bland as I can’t even grow facial hair. A necklace would really be a small touch, but as you say a nice touch. Rings I can understand not being visible (they’re so tiny) but there is a big, empty spot necklaces can fill.