Diamonds may be one of the hardest substances but it is still possible to damage a diamond if it suffers a strong blow. It is therefore not advisable to wear helzberg diamonds free pearl earrings if you are doing any rough work.  However, one of the most damaging substances for diamonds is chlorine so it is important not to allow your diamond jewelry to come into contact with chlorine-based bleaches or other household cleaners as they will discolor the diamond.