Pendant & bail size: 46.6mm long x 22mm wide Chalcedony: 36.8mm (Conversion: 2.5cm = 25mm = approx. 1″ inch) Personalise this pendant with your choice of Add On birthstone or charm Gemstone pendants are packaged in a lovely randomly chosen gift pouch with a description card, ready to give or keep for yourself! Chalcedony – was used as a sacred stone by Native American Indians, promoting stability within the ceremonial activities of the tribes. Chalcedony alleviates hostility, irritability and melancholy. It enhances generosity, responsiveness and receptivity.