Kendra Scott Magical unicorn Charm Necklace Set in Rose Gold

This set was only worn once or twice and then stored away. When I brought it out, it appears to have a decent amount of tarnish on the charms. Don’t know if it’s able to be polished. Kendra Scott Magical Charm Necklace Set in Rose Gold 14k Rose Gold Plated components • Adjustable sliding bead closure • Size: 28"L chain CZ Charm Ring • Size: 0.85"L x 0.69"W, removable Unicorn charm • Size: 1.04'L x 1.09 W, removable Irregular Heptagon Pave charm • Size: 1.18"L x 0.71"W, removable • Material: dichroic glass Unicorn Horn charm • Size: 1.90"L x 0.25"W, removable