Look at this sign. The symbol of silver is S925 or 9.25 or 925. The foot silver mark is S990, and there are also thousands of foot silver marks or S999.

Extended data

1、? Color discrimination? Reality: the surface looks even and shiny, decorated and fine in workmanship. It's sterling silver jewelry with high color.

Fake: The poor color is fake jewelry. If it contains lead, the jewelry will appear bluish gray; if it contains copper, the surface of the jewelry will be rough and the color will not be moist.

2、? Bending method? True: silver jewelry is easy to bend and break by hand, and its color is high; Rigid, almost inelastic color is very low. ?

False: Silver-coated jewelry will crack if it is bent or knocked with a hammer several times; Those that can't stand a light discount and are easy to break are fakes.

3、? Listen to rhyme? True: knocking on sterling silver jewelry is inelastic, and the sound is "bam bam". The higher the color, the deeper and more powerful the sound, and the sound has no rhyme; The lower the color, the sharper the sound and the higher the rhyme. ?

False: if it is made of copper, its sound is higher and sharper, and its rhyme is short and short. If it is made of lead and tin, its sound is dull, short and inelastic.

4、? Marking method? Really: S925/? S990？ /S999、Ag？ 925/? Ag？ 990/? Ag？ 999, Silver 925/ Silver 990/ Silver 999, Foot Silver, Thousand Foot Silver, etc. Some will also print the manufacturer's code as a credit guarantee for product quality. For example, Xiong Silversmith's products will be printed with "xyj", except some silver ornaments are too small to be printed.

Fake: generally, if there is no above mark or the mark is abnormal, it is fake silver jewelry.

Baidu encyclopedia-silver jewelry