I just bought this diamante drop earrings and after finalizing the purchase, the SA just told me that I should not wear lotion, perfume and wear it at least 15minutes after taking my bath. That seems a handful
. Also I'm very confused of what kind of cleaning cloth is safe for these type of jewellery? The SA told me only a very soft cloth allowed otherwise it would scratch which really concerns me.
I have this normal jewellery cleaning cloth that have 2 layers, one for cleaning & one for polishing. I attached picture of it. I wonder if this cloth is soft and safe enough? And how to prevent it to get darkened especially I live in a tropical humid country?

I have this normal jewellery cleaning cloth that have 2 layers, one for cleaning & one for polishing. I attached picture of it. I wonder if this cloth is soft and safe enough? And how to prevent it to get darkened especially I live in a tropical humid country?