Rings 1-3 is worthless imo. Selfuse.
Ring 4 is decent, ok mana for a fcr ring. Still dont think its worth trading though. But beats the mana on most of my own fcr rings, need more stats.
The nagel is worth somewhere between Pul - Mal. Some asks for Pul and some for Mal.
Myself? Id ask for Um!
If its not perfect, no one will care about ar on Nagels. They are just mf rings, and no caster looks at ar..
Amulet 1 is worth about Ist.
The rest is worthless due to no adds!! Life/fcr is the common adds peaople look for!