Posted 5 years ago
Recent online purchase, approximately .75" Mexico mask earrings. Nice color. Backs are marked STERLING MEXICO and ear clasps have been replaced.
I have looked through some research books - plus online! The stone is described more than one way: dyed onyx, travertine, aventurine, Mexican "jade", green stone and serpentine (which is jade right?). So, it's still not 100% clear what the stone is. But definitely not glass or man-made. One of the sources was helpful stating that STERLING MEXICO is an older pre-1950 mark.
My opinion? The research books were beautiful but also disappointing since they only covered known designers. So much amazing work - thank you Mexico! Truly beautiful jewelry - but who made it? That is the mystery.