The ring has a decayed, inlaid, glass bezel that is badly decayed. Found with several other rings.
From Meroe, Beg. W. 333. February, 1923: excavated by the Harvard University-Museum of Fine Arts Expedition; assigned to the MFA by the government of the Sudan.
Harvard University—Boston Museum of Fine Arts Expedition
Nubian, Meroitic Period, 185–10 B.C.