Always sort your jewellery
Sort out your jewellery whether it is imitation, pearl, gold, and silver so that you can use different methods for cleaning them. Place them separately - not jumbled together. If possible, separate gold and all other jewels from each other. Keep pearls especially in a different bag or box. Make sure that pearls' container is not too dry or airtight (they can get damaged).
Store your jewellery in zip or drawstring bags
Ensure that they of soft cloth like chintz, velvet or cotton. Avoid linen, net, georgette and jersey. This is the best way to protect your jewellery from external elements. If not, you can also put them in wooden boxes, their walls lined with foam and lay them on soft cotton wool. Additionally throw in a silica gel sachets to absorb the moisture if any.
Regularly polish your jewellery
A regular good quality transparent nail polish will do the trick. You can coat your jewellery once a month and this will ensure they shine every time you wear them.
Gemstone jewellery needs to be taken extra care
You can do this by cleaning it with a soft brush and mild soapy water. You may also clean these items using jewellery cleaning solution.
Try not to expose your jewellery to everyday chemicals
This includes hair products, cosmetics, perfumes, or direct sunlight, as they are likely to damage them.