Add This Mark - Swarovski necklace kids Sterling silver is not pure silver. It is an alloy composed of 92.5% silver and 7.5% other metals. Most of the sterling silver objects like Swarovski necklace kids carry a distinctive seal that denotes its purity and is placed in a discreet place. If the item does not carry a stamp, you can determine if it is made of sterling silver by performing a variety of home tests or consulting with a professional. Tue, 27 Mar 2018 04:05:21 UTC en