Vintage Italian pendant in silver with semi-precious stones

This is one of three similar pendants that were bought by a friend's parents in Italy in the 50s or 60s. About 1-1/4 inches long, it has two rows of six panels, each with a different stone, as well as a stone at the bottom, and weighs about 7g. The stones include coral, turquoise, lapis lazuli and others I can't identify with certainty, but the combined effect is very eye-catching. There is a mark on the bail that I think is 800, and the piece has been confirmed as solid silver. In very good condition, with an antique finish which I believe was intentional. (ga)