These are fluorites in green-blue and purple hues. They come as a set of two. Size: Approximately 7.2-7.5mm Inner Diameter: 15.5cm * As these are natural stones, there may be minor scratches or small imperfections, which are inherent to their natural state and are not considered defects. Please purchase only if you understand and accept this. Fluorite Natural Stone Power Stone Bracelet Power Stone Bracelet 3300→2300→2000