For my oxidized sterling silver pieces, I recommend using a silver polishing cloth to keep your jewelry bright.
I do NOT recommend a jewelry cleaning salvation like Tarn-x or the aluminum foil and baking soda method because it will remove all go the oxidization from your piece.
For my gold pieces, a silver polishing cloth will work as well.
These are quite the beautiful earrings, and fit well for everyday wear as well as other styles!
C.B.I shall be strengthened.