Really unique, interesting piece. Both pendant and chain are marked Zar 800. The Zar is difficult to see, but I was able to see it more clearly on the chain, than the pendant, with a jeweler's loupe. Tried to picture.
The pendant appears to have designs that look like petroglyphs on it. People, animals, tools. There are 3 small figures that have a green inlay- I don't know if it's a stone or enamel. The chain is a chunkier link- almost a little Goth punk. This has not been polished at all.