خَاتَمُ فِضَّةٍ يَتَخَتَّمُ بِهِ فِي يَمِينِهِ فَصُّهُ حَبَشِيٌّ يَجْعَلُ فَصَّهُ مِمَّا يَلِي كَفَّهُ .
It was narrated that Anas bin Malik said: "The Messenger of Allah [SAW] had a ring of silver which he wore on his right hand. It had an Ethiopian stone (Fass), and he used to wear the stone (Fass) next to his palm."