In order to maintain their original aspect we recommend the following: Clean your piece of jewelry on a regular basis with a soft and dry fabric. Avoid contact with water or cosmetics (perfume, soap, cream). Keep your piece of jewelry in its original packaging or in a protective pouch. All the pieces of Les Néréides brand (except fragrances and candles) bought online carry a 1 year warranty from the date of purchase. Please note for hygiene reasons, earring (except clip-on), perfumes and candles cannot be returned nor exchanged.