Silver can tarnish , oxidized with air quite easily, leaving it looking black and dirty. To ensure that your silver is kept clean it can be polished gently with a jewellery cloth or even with a piece of cloth.
Copper is likely to develop a distinctive patina. Patina is not a “defect”, it is a natural by-product. If you do not like the patina effect, you can clean copper goods using standard copper polish.
Take Care using polishes and tarnish removers around your gemstones, as these can cause your gemstones to become dull and fade.
