This is a vintage 1960s to 1970s Scorpio astrology necklace. It's such a cool piece. The brand is on the bak and tiny. it's hard to read. The metal is unknown to me. This is definitely a costume piece. If you are a Scorpio you will love this rare pretty vintqge piece! from length measurement: 12" total length:20" Total pendant: 2" by 2"