Vintage 925 sterling silver jewelry- Fresh Pearl - 3 petal flower- silver stud earring Material: 925 sterling silver ,pearl What is 925 sterling silver? 925 silver is known as sterling silver, silver content is 92.5%, entry-level in silver, a higher level is S990 fine silver or 999 fine silver (senior sales are usually by gram), 925 silver silver is 92.5%, about the 7.5% is the other mix metal elements inside, usually in a variety of copper element The store of 925 silver can ensure that all people are not allergic? 925 silver for 99% of the population is can prevent allergies, but there's no way to ensure that all people can be, perhaps because the purity problems, or because some silver production process problems, all in all, the body is very complex, any possibility exists, in our work, we have encountered this kind of situation, suggest the buyer can change a brand, or try to buy S990 fine silver. Why the silver color will become yellow or black? Silver after exposed to air for a long time,the color become yellow or black phenomenon happens, it is belongs to the normal phenomenon, as the silver is pure without any electroplated process,you can be use rub silver cloth or professional silver wash water, in daily life also can dip in with a small soft brush toothpaste to gently brush the surface, restore the color such as new ~ ~