The Messenger of Allah ﷺ had a silver ring made for himself with an Abyssinian stone, and its inscription read, "Muhammad, Messenger of Allah."
حدثنا محمد بن يحيى حدثنا عثمان بن عمر حدثنا يونس عن الزهري
أن رسول الله ﷺ اتخذ خاتما من فضة له فص حبشي ونقشه محمد رسول الله
Bukhari narrated it in the Book of Clothing, chapter 47, hadith 5868, and Muslim in the Book of Clothing and Adornment, chapter on the silver ring with an Abyssinian bezel, hadith 2094, from the hadith of Yunus bin Yazid through this route.