The product is a natural Ethiopian Welo Fire Opal oval cabochon with a weight of 7.7 cts. This black opal gemstone has a fire color and is transparent with an opaque quality. It is cut to an excellent grade and polished, making it a unique and vibrant piece for jewelry or as a gift. This vintage gemstone originates from Ethiopia and comes with certification from GIA, making it a high-quality addition to any gemstone collection.