The Prophet (s.a.w.s) advised Imam Ali (a.s.): “O `Ali, wear a ring on the right hand, for it is a blessing from Allah (s.w.t.) for the ones brought near [to Him]. Imam Ali (a.s.) asked "Which stone do I wear, O Messenger of Allah?" He replied: "Red aqeeq (agate), for it was first to testify to the Lordship of Allah, my prophethood, your authority, the Imamate of your children, the Garden for your lovers, and Paradise for your Shia”
Imam Ali (a.s.): "Wear Aqeeq on your rings, you will be blessed and will be saved from afflictions."