Pearl pendant dangle earrings

Beautiful pearl drop / dangle earrings that I bought from a small jewelry maker. Fish hook back with a dainty chain connected to a flattened pearl medallion / charm / pendant. Pearl looks similar to a freshwater pearl because it has a slightly irregular texture. I was told the metal is sterling silver by the seller but I don’t see any markings on the earrings anywhere. I just don’t wear silver jewelry anymore so these have been just sitting in my jewelry box for a couple of years and I want them to go to a new home! Drop is about 1.4” / 3.5 cm Pearl medallion is about 1.1 cm / 0.4” Seem to be in great condition, I don’t see any flaws