"This item is a jeweled angel lapel pin. It is often described as a Christmas-themed accessory featuring a gold-tone halo, clear rhinestones for the head and body, and green enamel wings accented with red "holly berry" rhinestones. 

Similar pins are frequently sold as vintage collectibles or birthstone-themed jewelry. While your specific pin uses festive holly colors, other versions use different colored crystals for the wings to represent various birth months, such as emerald for May or peridot for August."