time:2021-01-26 source:sznbone Views:
When buying silver jewelry , just look at the mark (stamp ) inside the jewelry (such as the inside of the ring, the tag of the necklace, the bottom of the pendant, and so on) :
The silver jewelry has the following mark :
1, sterling silver: there are "S925" or "AG925" logo (the S925 format is more often used), indicating that this metal silver content is 92.5%. This is the most common mark.
2, silver: there are "S990" or "AG990" sign , saying that the metal silver content is 99%(quite pure ah! . This logo is mostly used for silver coin, silver furnishings and other large silver ornaments.
3, no mark: it is very likely to be ordinary metal, such as brass, alloy,etc.
When buying 925 sterling silver jewelry, how to choose and buy it, here are some tips :
1) mark. Silver jewelry should generally be marked with the English abbreviation of silver (" S "or" Sterling "). The mark of Standard Silver is S925. The silver is S990. But there are also many countries that do not make a mark on silver jewelry.
2) color. Silver jewelry is mostly silvery yellow, showing a soft metallic luster. Because of easy oxidation, over time, the color will become dark yellow white.
3) Silver has a density of 10.53 grams per cubic centimeter. Smaller than platinum and gold, no drop feel in hand. Needles can be marked or bent. In this way, it can be distinguished from platinum, K white gold or German silver jewelry imitating silver.
4) the acid test. Silver will change color in contact with any acid, and even dissolve. If a drop of concentrated hydrochloric acid is dropped on the inside of a silver jewelry, a white mossy silver chloride precipitate will be formed immediately. Other precious metals do not have this phenomenon.
5) phonology. Standard silver touches the ground with a muffled sound that doesn't bounce or roll.
After you have determined that the silver jewelry you like are actually made of 925 materials, how to distinguish their quality from that of others? There are two ways for you to choose:
1, color discrimination method: with the eye observation, looks white, shiny, fine workmanship, and printed on the jewelry store number, for high color silver jewelry; The poor lustre is mostly the poor quality silver jewelry.
2. Bending method: gently fold silver jewelry by hand, which is easy to bend and not easy to break. Stiff, barely flexed, low finish; After bending or hammering a few times will crack for silver - covered jewelry; Can not withstand light folding, and easy to break for fake goods.