This Rolling Flash Pattern with Broad Patches, Semi Black Crystal Opal a predominantly translucent body with a play-of-color effect. The opal displays a range of colors including green, blue, and orange hues, indicative of its opalescent nature. The surface is polished, showing a good level of clarity with minimal inclusions. The shape is irregular, typical of natural opals, and the cutting style appears to be cabochon, enhancing the gemstone's natural luster and color play. The transparency is classified as translucent, allowing light to pass through while still maintaining some opacity. The polish is rated as very good, contributing to the overall aesthetic appeal of the gemstone.