What a terrific set of stones....green jade, jasper, gray jade, chrysoprase...a couple of others that I've yet to identify.
We acquired these from a lady who purchased them in Germany in the early 1950's. We thought they'd show nicely dangling from a charm style bracelet, and made it happen. The stones are hanging from a 12K gold filled charm bracelet that measures a bit shy of 7 inches long, and has a safety clasp.
Note that the oval shaped stone appears black in the photos, but is actually a dark purple (jasper).