Oh, there’s actually no “Crafting” subforum? I’m surprised.
So, I was looking through the list of craftable components (in-game, so maybe I need to learn it first? But i already have a list of 95125 weapon/armour components…) and noticed there wasn’t any that could be inserted into rings, and only 1 (or 2?) that work on amulets.
That’s a bit sad, no?
Maybe you can check this tool : http://www.grimtools.com/db/category/components/items
I counted at least 7 components for rings and maybe more for amulets/medals. Most of them are drops and some can be crafted (blueprints are sold by faction vendors).
Vengeful Wraith is craftable and works on rings for example