Australian AB black opal bracelet (7-8mm balls)

Australian black opal is a rare and precious gemstone, renowned for its unique crystalline structure and spectacular play of colors. Unlike common opals, its dark matrix allows chromatic reflections to stand out with remarkable intensity. This variety, mainly extracted from New South Wales, is distinguished by its superior density and stability. Black opals possess fascinating optical properties: their refractive index creates diffraction phenomena that produce subtle and changing multicolored flashes depending on the angle of light. They are also known for their relative durability compared to other opals, although regular hydration is recommended to preserve their integrity. Each stone is unique, with a color pattern that will never be identically reproduced.