How to identify the authenticity of gold jewelry

Gold jewelry refers to the main raw material for the production of gold jewelry. Chemical symbol for gold Au, accounting for 17.4, Mohs hardness of 2.5. Gold jewelry from its content can be divided into two types of pure gold and gold. Of pure gold jewelry of gold in more than 99% up to 99.99%. Therefore, another 99 gold, full gold, pure gold is called. 
Gold jewelry in gold materials include other metals from the jewelry manufacturing, due to the addition of other metals have a number of small, gold jewelry and created the different K kill. In gold jewelry, the soft texture of pure gold jewelry, dental bite has printed, easy to bend, color gold, pure, soft, feel heavy and have heavy feeling. K gold jewelry quality hardware, dental bite Unstamped, yellow in color with white and gold depending on the number of smaller, growing white, yellow, becoming shallow, K gold jewelry gold jewelry than a heavy hand. In addition, whether it is pure gold, or K, both with imprint. 
Gold-plated jewelry metal jewelry in other surface plating method on a layer of gold-plated, color and similar to real gold jewelry, gold  light, more difficult to identify when new, but its hard texture, dental bite Unstamped with long fade easily, and plating is not good, red is the color is not white, or Huahua. 
Gold jewelry refers to the metal surface in other packages of 24 or 22K gold foil, such as gold foil a few of the pressure is too low, and its poor flexibility. The appearance of gold jewelry and gold jewelry really similar, glittering, but also not easy to fade, is hard to distinguish its true, but as long as careful observation of the depression jewelry, angle Department, behind, etc., or have found gold surfaces, have Alice edge since the phenomenon of skin, such as jewelry have broken joints can be seen from here to see the metal material is Hicriopteris outside the yellow, in addition to gold jewelry is also a lighter feel and texture than the pure hardware jewelry, dental bite Unstamped and difficult to bend, long-wearing gold easily detached from skin. 
Whether it is gold jewelry, gold jewelry, copper jewelry or are not normally like gold jewelry with the Indian sign. Or brought Indian gold jewelry is different from the sign, if the ornaments are engraved letters of the alphabet has its containing GK is a gold-plated, or printed signature blurred, consumers should seek to identify whether jewelry has printed sign that India is executed clear and so on in order to determine the authenticity of gold jewelry.