Blue Aventurine, Aquamarine, Crystal Power Stone Bracelet Power Stone Blue Aventurine: Works on the owner's mental state, calming negative emotions. Cultivates patience. Aquamarine: Happy marriage, stone of angels, protects from nighttime dangers. Crystal: Cleansing of everything, enhances the power of other stones, protects the wearer. - Materials: Blue Aventurine 12mm beads, Aquamarine 12mm beads, Crystal 10mm beads Inner diameter 16cm (This is a general size for a woman's wrist). Although it is a stretch type, we recommend measuring your wrist before purchasing. The color of the photos may appear slightly different due to the stones and lighting. Because natural stones are used, the color intensity and patterns vary from individual to individual. We handle stones with the same names, but the patterns may differ from the photos. We ask for your understanding before purchasing.