Just to validate, prongs for any vintage brooch is VERY good, meaning always check to see if a vintage piece is glued or pronged and if both or just glue, it's a good chance its fake.
Cheap jewelry uses glue to attach fake stones, but high-quality vintage jewelry norm uses prongs to affix real gemstones, and normally do not have any signs of glue, which is the case for Weiss Vintage jewelry.
Also prongs used in vintage jewelry will be different than what modern prongs brooches will have. Vintage such as Albert Wei
ss where he had a short run from 1942 to 1971 were made by hand and the prongs used during that time would be more slender in width and shorter in length where the prong would basically be long enough to adhere the stone to the piece so that you had more of the gemstone to look at, and "most," of Weiss brooches with the exception of a few have "a smooth, shiny rhodium-plated back. If you see the back of a signed Weiss brooch with a textured or "un-smooth," surface,good chances are it's a fake.
Rating
No glue on genuine Weiss by: Anonymous
If your pieces are prong set, you can be assured they are the real deal. I don’t believe Weiss had their jobbers use glue. Am I right?