This black opal is for anyone who wants to make their own jewelry. It is sold loose, so you pick the metal, the setting and the design. Jewelers and hobby makers often look for an Ethiopian black opal cabochon because it sets easily in a ring, a pendant or a pair of earrings.
A black Ethiopian opal has a dark base, and that makes its colors easy to see. When you turn the stone in the light, the flashes of color move and change. This is why many makers choose a black opal over a light one when they want a piece that gets noticed.
If you are asking what is an Ethiopian opal, it is a natural opal found in Ethiopia. It is loved for strong color and for a price that is lower than many other black opals. You will also see names like Welo opal and fire opal, which are often used for similar stones.
Many buyers search for fire opals for sale when they want bright color on a dark stone. This one is a good choice for that.