For your consideration is this large Mexican green onyx sterling pin. I am including the sterling green onyx screw back earrings that came with the lot although I am not sure it is a true set but they work well together. The green onyx is nicely carved and the face is adorned with fancy sterling wire work - a headdress , earrings and neck piece. The pin is marked Sterling 925. It is not marked Mexico but is obviously Mexican. The earrings are marked Silver Mexico. The use of the mark Silver Mexico on sterling is a pre 1945 mark. All items have tested as sterling. The sterling on all has a nice patina.
The pin measures 3 inches by a hair over 1 and 3/4 inches. The face of the earrings measures 1 inch by a hair under 3/4 inches across the widest points.
The set is in excellent vintage condition with fully function hardware. The only thing I see is a little minor bending to the wire work that could easily be remedied/reformed but is not a big deal. The stone is excellent.