Australian Black Opal

Understanding the Rarity and Value of Black Opal

Unlike lighter opal varieties, black opal features a dark body color that intensifies the play of color. The deep background is formed by the presence of natural black potch or carbon and iron oxide trace elements within the silica structure. This natural phenomenon acts as a dark canvas, making the brilliant flashes of red, orange, green, and blue stand out with maximum contrast. Every stone in this collection is a solid, solid piece of natural opal, never an artificial doublet or a triplet.

The value of a black opal is determined by the brightness of its color play, the complexity of its pattern, and its color range, with red being the most coveted color. Famous patterns such as harlequin, flagstone, and Chinese writing are rare and sought after by collectors globally. According to the Gemological Institute of America, the play of color in precious opal is caused by the diffraction of light through microscopic silica spheres. Shoppers can read about our company history and expert credentials on the Opal Galaxy about us page. Opal Galaxy guarantees that every listing contains genuine Australian gemstones sourced ethically from reliable miners.