Silver jewelry has the following stamps.
1: Silver: There is a sign of "S925" or "925 Silver" (the former is a little more), indicating 92.5% metallic silver content. This is the most common sign, and the most common jewelry and silver market generally sells silver (forget it! ) common symptoms.
2. Foot silver: There is a sign of "S990" or "Au990" (the latter is a little more), indicating that 99% of this metal has silver content (purer! )。 This sign is used for: silver bars, silver ingots, silver ornaments and other large pieces of silver ornaments.
3. Silver-plated: with the seal of "SL" or "FS", it means that this is a silver-plated jewelry, and my value is self-evident!
4: Unsealed: This is probably ordinary metal.
In our time, how to verify the authenticity and internal quality of 925 sterling silver jewelry, here I introduce a few tips:
1) logo. Silver ornaments are generally marked with the English abbreviation of silver ("S" or "Sterling"). Standard silver mark S925. The imprint of foot silver is S990. But there are also many countries that don't print and write on silver ornaments. ?
2) color. Silver ornaments are mostly yellowish silvery white with a soft metallic luster. Due to oxidation, it will turn into a dark yellow white with the passage of time. ?
3) heavy weight. The density of silver is10.53g/cm3. Smaller than platinum and gold, there is no feeling of autumn when you weigh it with your hands. Needle scratches can also be bent. In this way, we can mainly distinguish fake German silver from platinum, gold or silver ornaments. ?
4) A severe test. Any acid will change color and even dissolve silver. If silver ornaments with concentrated hydrochloric acid are dropped inside, there will be white precipitation of silver chloride, which will immediately produce moss. Other precious metals do not have this phenomenon. ? 5) rhymes. Standard silver jewelry does not rebound and has no volume after landing.
Are you sure your favorite silver jewelry is the real post-925 material? How can you tell them that this is the quality of good and bad? There are two options to choose from:
1, color discrimination method: the number of white, shiny and fine workmanship printed in high-sterling silver jewelry stores; The dull color difference is mainly poor quality silver jewelry.
2. Bending method: silver jewelry is easy to bend, not easy to break by hand, and the color is high; Stiff and barely folded, with low color; Through some bending or breaking, wrap the silver ornaments with a hammer; Can't stand light folding, and it is easy to break into fakes.