Never ultrasonic or steam clean.
Avoid heat. Restring often (once a year). Wipe off with a soft, damp cloth after each wearing. Do not submerse or soak in any liquid. Store away from other jewelry items. Put on last, take off first to avoid direct contact with perfume and hairspray.
2 1/2 - 4 on the Moh's Scale
Usually good unless the outer layers have surface imperfections.
Avoid any exposure to prolonged heat including intense light sources. Generally stable to light. Avoid chemicals, all acids, perspiration, skin oils, perfume, and hairspray (alcohol-based).
