If you start seeing tarnishing on your WG guilloche pieces, meaning the rhodium has worn off you'd need to get it re-plated first. After that, wipe it clean with the cleaning cloth from VCA daily or after each wear, and then clean it with ultrasonic cleaner occasionally to get rid of all the built up gunk that stuck in the tight crevices should be more than sufficient. Like others have mentioned, any polishing clothes/cream or jewelry cleaning solution which often contains ammonia or other acid base active ingredients are usually too harsh for cleaning rhodium plated WG pieces, not that it would damage the gold, but the rhodium plating on top of it. You can use it very sparingly on YG and RG pieces though.I buy a jewelry cleaning solution from Amazon - so that wouldn't be safe to use?
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