Black opal cabochon – spectacular fire in green, blue & red 29.55- 5.91 g

Black opal is one of the most prized varieties of opal, known for its dark body tone that dramatically enhances its play of color. This spectacular cabochon features vibrant flashes of green, blue, and red fire, a hallmark of high-quality black opals. Opals form from silica-rich solutions that solidify over time, and the unique internal structure diffracts light to produce the distinctive iridescence. Black opals are primarily sourced from regions such as Lightning Ridge in Australia and are highly valued for their rarity and vivid color patterns. This cabochon cut—where the stone is polished with a convex surface and a flat back—serves to showcase the gem's intense color play to the fullest, making it ideal for jewelry settings that highlight its natural beauty.