Identify silver jewelry

Jewelry itself highly adaptable, changing and diverse style, is not our impression that a simple sterling silver jewelry. It is in shape, varieties, technology has a lot on the elements of fashion, and silver jewelry sales are increasing year by year.
In addition to sterling silver jewelry, there are black and silver jewelry, Tibetan silver jewelry and silver jewelry color. Attraction of silver jewelry is that it can also imitate precious stones or precious stone and other materials, which is more diversified.
Some 925 silver jewelry is silver, while others use it is 990 silver, sterling silver jewelry in the end which is a sign of it? National Jewellery Quality Supervision and Inspection Center explained that the national standard 990 silver, 925 silver, 800 silver can be used to make silver jewelry. Now that the silver jewelry silver jewelry are generally 925. 925 silver jewelry is 92.5% silver content and then adding 7.5% of the alloy, the alloy is added to silver in the sunlight, brightness and hardness are improved. And since the 1851 launch of the first set of Tiffany silver content of 92.5% silver jewelry, 925 silver began to pop, so now have to identify whether the 925 as the standard silver jewelry. 925 silver jewelry polished after showing a very beautiful metallic luster, but also has a certain hardness, to precious stone, made of high-end jewelry.

990 fine silver, is the silver content of 99% and 1% of the alloy, because of its hardness is not enough, made into jewelry is easily deformed, so few manufacturers use it for jewelry, and 990 in the industrial use of silver was more wide.

800 silver is the silver content of 80% by adding 20% ​​of the alloy, due to lower silver purity of the more easily oxidized, so manufacturers rarely use it for jewelry. Silver jewelry by detecting people at ease.
Although silver is very cheap raw materials, but there will be some of the manufacturers in the incorporation of silver cadmium, iron, copper and other cheaper metals. The cadmium is harmful to humans, according to the provisions of the jewelry is not allowed in the mixed. Manufacturers to do so mainly to reduce costs, achieve higher profits. Mainly in copper-doped silver lock in the middle of the supporting frames to do, according to state regulations in the supporting frames silver locks should also be silver. As the copper wire hidden inside the silver locks, so consumers can not see, only when making jewelry testing in order to destroy it reflected in its true colors. Only until a long time, there's rust leaking, the consumer can be found.

Silver jewelry, though not expensive, but there are really fake, although this phenomenon is not widespread, but consumers should still have some way to identify silver jewelry. When consumers can inspect the physical properties of silver, usually with the test methods are:

See jewelry color: the higher the purity, the more white and silver, jewelry, shiny surface looks uniform, with polish. If you lead, will be showing a gray jewelry; such as copper, jewelry surface will become rough, the color is not moist feeling.

Weigh jewelry weight: silver metal density slightly larger than the average common, generally speaking: "aluminum light weight silver, copper does not light nor heavy." Dian Dian weight of which is silver to make their initial judgments. If the jewelry larger and lighter, you can determine the initial jewelry is other metals.
Check hardness: the hardness of silver over copper is low, while the more lead, tin big draw jewelry pin can be used to test inconspicuous place, such as needle slip surface, difficult to leave marks, you can judge for copper jewelry jewelry; such as lead tin texture, then trace it is clear, prominent; such as physical traces but less obvious, can be initially determined silver jewelry jewelry.

Listen to rhyme: silver jewelry jewelry resounding, no stretch, the sound of "porphyrin porphyrin da da." The lower the purity, the lower the sound, and the higher and more sharp sound with rhyme; the case of copper, the higher the sound and sharp, rapid and short rhyme sound; the case of lead, tin texture, then throw to sound boring, short No stretch.

Simply the physical properties of silver and silver jewelry experience to test is not very ideal. Only silver destroyed chemically in order to test the genuineness of the merits of silver. However, this is beyond the reach of consumers. Consumers when buying silver jewelry in addition to master some basic knowledge of the test, we must also note that silver jewelry has no relevant certificate, certification, certificate signing, only through testing organizations had silver jewelry to buy with confidence. In addition, silver jewelry must accurately indicate the amount of silver, looks for jewelry consumers on whether there should be "925" message. "925" is the silver sign. As long as the "925" can ensure that the purchase is a genuine sterling silver jewelry. Special attention to the time of purchase whether it's fastener and fasten securely. It is time to buy jewelry silver chain flat to see whether the knot or chain link bent. Silver jewelry prices are based on precious metal content, design and craftsman skills to the decision, so choose the most important criterion silver jewelry is to see if you like.