14K yellow gold antique pin with a carnelian agate panel and rose cut diamond accents. The pin has a cast shell and scrollwork. The carnelian is an orangey brown color specialty 8 sided cut and measures about 14.5mm x 12.5mm. There are 6 tiny rose cut diamonds set in silver. The pin measures 2 1/8" by 1" and weighs 5.18dwt. It dates from the 1890's.