Sterling Silver earrings and CZ 925 Heart Pendant

sterling silver earrings stamped NF (nickel free) Thailand, my mom wore these a lot and they show signs of wear, view pics closely. I’m thinking a jeweler could shine them up nicely! Also I have a CZ 1” Heart stamped 925 China-I know she bought this at either QVC or JTV 🤦🏻‍♀️ always the shopper! Unfortunately while I was taking pics, I dropped it and it landed right on the point of the heart and one of the CZ’s fell out but again, I know a jeweler could easily replace at little to no cost