This Ethiopian opal has a unique and lovely shape. It has a bright fire color to it, with all colors of the rainbow, mimicking a beautiful colorful galaxy! Sophisticated and classy, this necklace is sure to wow! It is surrounded in mini diamonds for the ultimate sparkle and set in 14k gold . 18" gold chain with adjustable slider. 15mm length Ethiopian Opal (1.780ct) Diamonds (0.12ct) 14k yellow gold