Opal ring, Ethiopian source. The black-green is the absolute best in Ethiopian opal colors. The greenish-black color is first class and shifts with light to green and red. Full fire, set with natural diamonds. Handcrafted with the jeweler's stamp inside. Engineer / Hujjat, known for his famous craftsmanship. 🍃 Sale by auction . The ring is guaranteed natural, untreated. . Size / Approximately 11 . ⭕⭕. Diamond-encrusted . Certificate attached . Sale by auction.. .