When you want to wear a piece of jewellery only to discover that it has become discoloured, it can seem a little annoying. Unfortunately, discolouration is a completely normal part of the ageing process, regardless of the type of material your jewellery is made of.
- In the case of silver, reaction with the air leads to the formation of silver sulphide on the surface. This causes a change of colour and creates the unsightly black areas that need to be cleaned.
- Gold jewellery can become tarnished by dirt, food, soap residue, makeup and sweat, which can cause it to lose its shine.
- Most costume jewellery consists of less expensive materials and, therefore, tends to tarnish even more rapidly. Before you start cleaning the jewellery, check whether any stains are purely superficial or if it has actually discoloured due to tarnishing.