This ring, made for a woman, is from the Bedouin people of Yemen.
It is decorated with granulation and other work. The shoulders are decorated with triangles of granulation. The bezel is raised and cylindrical. It has a plain, flat top.
Rings such as these were also favoured by the Rashaida people of Sudan, a tribe of a tribe of ethnic Bedouin Arabs who are descended from Bedouins from the Saudi Arabian peninsula.
The ring here is stable, wearable, and has clear age.
van Cutsem, A., A World of Rings: Africa, Asia, America, Skira, 2000.
Ransom, M., Silver Treasures from the Land of Sheba: Regional Yemeni Jewelry, AUC Press, 2014.
van Roode, S., Desert Silver: Understanding Traditional Jewellery from the Middle East and North Africa, BLKVLD, 2017.