Are rings with the stones of amethyst, citrine, granite and onyx Mustahab to wear? If so, what are their effects and in which narrations can they be found?
We have many narrations encouraging wearing ring, any ring except golden ring for me because it is forbidden for men to wear gold as well as pure silk. We also have many narrations to wear Aqeeq Yamani (Onyx) and Pharozaj and other precious stones.
You can find many of these Hadeeths in Wasaa'il Al-Shia, Hadeeth number 5980 and 5983, 5991, and 5993, and 5996 and many others.
Wassalam.