https://www.makeleio.gr/%ce%b5%cf%80%ce%b9%ce%ba%ce%b1%ce%b9%cf%81%ce%bf%cf%84%ce%b7%cf%84%ce%b1/%ce%a3%cf%86%cf%81%ce%b1%ce%b3%ce%b9%ce%b4%cf%8c%ce%bb%ce%b9%ce%b8%ce%bf%cf%82-2-000-%ce%b5%cf%84%cf%8e%ce%bd-%ce%bc%ce%b5-%cf%84%ce%bf-%ce%ba%ce%b5%cf%86%ce%ac%ce%bb%ce%b9-%cf%84%ce%bf%cf%85-%ce%91/ this apollo gid gem is probably a magick one so that jew who wear  it was in alexandria in sencretism world and know gnostic or orphic magick.