1, using professional metal polishing agent. You can buy professional metal polishes in jewelry stores or gold and silver jewelry stores. Apply polishing agent to the surface of the bracelet, and then gently wipe it with a soft cloth to make the bracelet more golden and shiny.
2. Ask the jeweler to polish the bracelet again. If the surface of the bracelet is scratched or worn, you can ask the jeweler to help you re-polish it. This will make the bracelet surface smooth and shiny.