This is our solution to this problem. In our case, a customer was
polishing a 14K pendant with a sunshine cloth and the pendant was
making black marks on her clothing. Second, when working an art
show, we would polish jewelry with a sunshine cloth and our 14k
rings would leave big black smudges on our hands.
Ta, ta. The solution - wash the jewelry with soap and water after
using the polishing cloth, and the black marks go away.
Some cosmetics have an abrasive component that will cause the same
Wash your jewelry and your hands. It’s not an allergy, it’s
remnants of polishing compound.
Judy Hoch GG