These jewels are basically composed of calcium carbonate, which is dissolved by sweat and other acidic chemical substances. In the case of pearls, their shine diminishes, they turn yellow and in extreme cases death occurs and in coral, the colour and nuances are eliminated. As a result we must be careful not to expose them to acids (perfumes, hairspray, cosmetics, etc.) - use these before putting on your pearls or coral jewellery - and we must also be careful with damp, sunlight or extreme temperatures (saunas, swimming pools, gyms, solariums, etc.). Contrary to myth pearls and coral can come into contact with both fresh and salt water. Pearls and coral need to be worn; the oils and humidity of the human body nourish and enrich them.

Pearl and coral jewellery is best stored in the original cases or in bags made of fabric, velvet or plush and should not be allowed to rub against other metal jewellery as it can be scratched. Never keep these jewels in plastic as the lack of air deteriorates them.

To clean them, they can be washed with neutral soap, rinsed in plenty of water and dried with a piece of linen or cotton, although the best idea is to use specific products for pearls, both liquids and chamois cloths. The most important thing, however, is to look after them in one way or another.