Gold: Containing no oxides, pure gold is the only precious metal that will not tarnish. Having said this, it is a relatively soft metal and care should always be taken with your gold jewellery.Gold should be cleaned regularly in order to maintain its beauty and patina. A soft, lint free cloth or even better a gold polishing cloth is an effective way to keep gold jewellery looking its best.
Silver: Silver does tarnish. When worn daily you usually don’t see tarnish but if you let your jewellery sit it is very common. Silver re-acts to moisture and will tarnish but is easily cleaned with baking soda.
Diamonds: Clean your diamonds with warm soapy liquid and a soft toothbrush, rinsing the stone and setting afterwards to ensure no soapy residue
Gemstones:When cleaning jewellery with gems you need to look at what type of gem your cleaning.and most transparent gems can be cleaned with dish soap, warm water and a toothbrush. Store your gemstones in separate jewelry bags to prevent future dirt build up and damage.