Sterling silver, 22K gold accents. A wonderful natural surfaced stone with shiny metallic copper colored crystals. It is this crystal habit that gives astrophyllite its name, from the Greek words astron meaning "star and phyllon meaning "leaf". Paired up with pretty, silky chocolate sapphires that are faceted, these make a great pair of casually dressy earrings. 2-3/4" long on posts. EXCHANGES ONLY PLEASE!