Vintage Clip On Earrings Faux Pearl Quad - Condition Issues

These earrings measure about 5/8". One faux pearl could be a replacement as has a lighter hue. I am unsure of the material of the gems; however, there are none missing but some appear to have been reglued as glue is visible in places and some are not straight. Some gems have clouded. Small marks to the front. Rear is stamped Japan and has multiple marks, silver tone wear/chipping, tarnish, discoloration and staining.

Preowned vintage earrings, sold as shown - I am unsure of material type(s) because of this. Pictures show different angles for you to review - while I attempt to note any defects, some tarnish/signs of wear may be visible that are not otherwise stated.

Earrings are tested and photographed on a thin/smooth earring stand (not included) to show that the clips are in working order.