The quality and silver content of all silver jewelry must be indicated accurately. Federal Trade Commission (FTC) has established a set of countermark and identification mark indicating silver contents in jewelry, which should be checked when buying them.
Only jewelry with sterling silver content equal to or exceeding 92.5% can be called silver jewelry. Sometimes, silver jewelry may also engraved with such figures as .925, 9·2.5 or 925, which are accurate identification marks that ensure your bought sterling silver containing authentic standard composition. In buying silver jewelry, you should check the jewelry maker’s trademark or inspection hallmark of jewelry traders in London proving the purity of gold or silver in the jewelry. Professional jewelry will explain about these hallmarks in more detail. The price of silver jewelry and gift made of silver is determined by the content of noble metal, structure design and silversmith’s workmanship. The buyer should exercise extra care to look over its hook to see whether it’s able to fasten firmly.
In buying silver necklace, you should spread it out to see whether the loops twist together or warp. In buying silver-plated accessory, you should check plating thickness and full coverage of silver plating. Generally, measurable purity of silver jewelry is divided into following types: 99 represents pure silver, although theoretically 100% purity is considered as pure silver, it’s hardly to obtain 100% purity. 99 silver is white in color and soft in texture, and jewelry made of 99 silver is apt to transformation and is impossible for gem setting.
98 represents fine silver, consisting of 98% silver and 2% cupronickel, which is marked 980S on the jewelry.
925 silver consists of 92.5% silver and 7.5% cupronickel, which is marked 925 on the jewelry. Most of silver jewelry is made of 925 silver. 925 silver jewelry after polishing shows gorgeous metallic luster and has certain toughness for gem setting and making medium-to-high-grade jewelry.