Sterling silver, with a hint of rhodium, owl pendant with Black Spinel eyes and Rhodolite Garnet accents. This one of a kind pendant measures 18mm. The Italian sterling silver 18" box chain is plated with rhodium. Why you ask...this touch of rhodium slows down the tarnishing process, that's less polishing for you. Semi-precious Red Garnet gemstone beads are said to evoke passion and are known for making commitments last. FYI - Garnet is the birthstone for January.