Gold jewellery with diamonds

To clean your gold jewellery or pieces that contain very hard gemstones such as diamonds, use nothing more than a soft toothbrush, warm soapsuds or thoroughly diluted washing-up liquid. Don’t forget to treat the insides of the pieces as well. Leave them in the cleaning liquid for a few minutes afterwards, then rinse with clear warm water and dab clean with a linen cloth or a dishcloth.