Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

The fire opal is rarer than other types of opal ... as the colors seem to sparkle as the stone is moved. Black opals are ...

Each stone's meaning can also vary a bit depending ... Adds Mehdi, "Opals come in various colors and types, such as black, fire, and white opal. Available in many colors, including pink, purple ...

The shinier the pearl, the better. Black opal is one of the rarest gemstones in the world, sought after for its seemingly infinite display of colors, compared to common opal, which is usually one ...

Soon enough, the pair, along with their tech-savvy friend Opal Tometi, director of the Black Alliance for Just Immigration, had lit up the Web with a plea to acknowledge—and fix—the ...

The limited-edition silhouette, which is slated to launch at a random time on October 31, features holographic jelly overlays ...

It was these drawbacks that led Stuart Semple to create his own incredibly black paint. Over the years, he’s refined the formula and improved its performance, steadily building a greater product ...

I expect Black Stone Minerals (NYSE:BSM) to maintain its current $0.375 per unit quarterly distribution for at least a few more quarters. That would give it the opportunity to put some funds ...

It comes in four colors: “Cerise,” a rich red with a black fade; “Caribbean,” a happy blue and the colorway we evaluated; ...

Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...