Assalam o Alaikum!
if any one know the best and safest way to save jewellery contains stone.
dont know exact name of these stones.
i have bought a lot jewellery made of these same stones. i kept them in my jewelry box but they became black in color.their color and shine fades out rapidly in some weeks.
what is the safest box?or method to keep them save from fading out their shine?
and also if any one know how to polish these stones so thir shine returns ;(

earrings 1 - What is the safest way to save you stone jewellery?