Does gold-plated jewelry tarnish? How to make it last
Short answer: yes, over time gold plating can oxidize or dull, especially in contact with water, sweat, perfume and creams. It isn't a defect but a natural process you can slow considerably with a few habits.
To make it last: take jewelry off before showering, the sea, the pool and exercise; apply perfume and cream before putting it on; don't sleep in it; wipe it with a soft dry cloth after wear and store it in a pouch or box, away from humidity. Quality Made in Italy plating holds up better over time.