The lovely old hand-carved cameo brooch is base metal but has a "gold top" or 10K gold layer applied to the front surface. This surface has a pretty engraved design. The gold-filled bezel is hand made as well. The cameo is beautifully carved from very pale pink coral, sometimes called "angelskin" coral. There is fine detail in the woman's face and the cameo is 1/4" thick. The pin measures 1" wide X 1 1/4" high. The catch is a safety catch that seems to have been soft-soldered on. The pin is from around 1900-1920 and is in excellent condition.