Vintage Sterling Silver Moissanite Earrings

These lovely vintage earrings are sterling silver and made with moissanite and if I had to guess onyx for the main stone? I can't say for sure so I'm not claiming the stone is anything in particular. Earring backings are stamped 925 and the back of one of earrings is stamped but I am unsure what the stamp says. Due to age the earrings do have a lot of natural patina which can be left for the aged look or polished for the shiny sterling silver new look. PLEASE NOTE : Earring posts have been bent and are NOT STRAIGHT! How ever due to the material they can be easily straighted with a pair of pliers. Earrings are still function despite their bent nature.