The most likely reason for the formation of black stripes on the skin under the rings is considered to be the quality and composition of the alloy from which the jewelry is made. At least, most jewelers are inclined to this version. If you have other opinions on this matter?
It is known that gold and silver are very ductile and soft metals. In order for jewelry made from them not to break or bend, other alloys are added to the composition of the jewelry alloy. For example, copper, which has the ability to darken and oxidize. The more copper there is in the alloy of your jewelry, the faster the finger under the ring will turn black.
Do not forget about the properties of copper to oxidize when interacting with sweat. Increased sweating can come from heat, stress, or endocrine disruption. If blackness under the rings began to appear regularly and at the same time you feel some deterioration in well-being, it is recommended to consult a doctor.
The situation is a little different with white gold jewelry. As a rule, palladium is added to its composition, which theoretically should not cause darkening of the skin under the decoration. However, nickel is often added to its composition to reduce the cost of the alloy. And this metal can not only cause blackening of the skin, but also cause allergic reactions.
There is an opinion that the blackening of the fingers under the silver rings indicates a malfunction in the functioning of the kidneys and liver. However, there is no scientific evidence to support this version.
There is also a "popular" version of the appearance of black stripes under the rings made of precious metals. It is believed that the golden ring signals the "evil eye".
