This is a natural lapis lazuli (Lapis Lazuli) round bangle. Main color: Rich imperial blue (sapphire blue), the most collectible color of lapis lazuli, with high saturation and a warm luster. Pyrite (small golden specks) is visible on the surface, a hallmark of lapis lazuli, known as "golden flecks," naturally formed metallic mineral inclusions; Calcite (white/grayish-white patches) and sodalite (blue-gray veins) are interspersed; these natural mineral coexistences are important criteria for identifying natural lapis lazuli; Fine natural stone lines and mineral veins are visible in some areas, which are normal characteristics of natural gemstones. Main origin: Afghanistan is the core production area of ​​high-quality lapis lazuli. The color and inclusion characteristics of this bangle are typical of old Afghan lapis lazuli. Lapis lazuli was considered a sacred stone in ancient Egypt and Babylon, symbolizing wisdom, power, and peace; The bangle has an inner diameter of 53.9mm, is bright and smooth without cracks, and is 12mm wide and 7.2mm thick.