Keep away from high heat and excessive moisture, which can damage some stones.
Since gemstones vary in type and sizes, it's near impossible to specify the right method to clean them, therefore the safest bet is to rub gently with a soft damp cloth to remove any dust. Extra care should be taken when cleaning freshwater pearls due to their fragility.
Store your gemstone jewellery in a sturdy case with soft, lined interiors to avoid impact against hard surfaces and scratching. If a jewellery box is unavailable, place jewellery in soft fabric pouches. Storing your jewellery separately will avoid tangles and scratches.