In the general scenario, sterling silver has no nickel content. Its constitution is made up of two materials namely silver (which has a content of 92.5 percent) and copper (which has the remaining 7.5 percent). In many cases, people tend to have an allergy with sterling steel. Nevertheless it is not actually the sterling steel but the impurities that cause that allergy.
Otherwise in the case of pure sterling silver, there is no case of allergies. Many people, in the desire to save a few bucks, choose to buy inexpensive sterling silver. This cheaper version of sterling silver has more or less a pollution of impure substances that are not originally part of the sterling silver and are only added to it to increase the weight of the sterling silver. Out of the array of such outside substances, nickel is one important one, which is often added to sterling silver to increase its weight.
Otherwise in the case of pure sterling silver, there is no case of allergies. Many people, in the desire to save a few bucks, choose to buy inexpensive sterling silver. This cheaper version of sterling silver has more or less a pollution of impure substances that are not originally part of the sterling silver and are only added to it to increase the weight of the sterling silver. Out of the array of such outside substances, nickel is one important one, which is often added to sterling silver to increase its weight.