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It is necessary to distinguish between "black" and "gray" counterfeit phones. "Gray" phones are phones that were illegally imported into the country, that is, without certification, but are quite suitable for use. The "black" phones were not only imported illegally, but also have a low build quality, only remotely resembling the original models, their maximum operating time is six months.
Sources:
- how to check authenticity of nokia phone
Many tourists, once in a particular country, try to buy souvenirs and various decorations, including from pearls. Such jewelry gives its owner more elegance and nobility. But at present, technologies in the manufacture of jewelry have become so advanced that even an experienced specialist can sometimes find it difficult to determine authenticity pearls. So how to check the truth of this beauty and not become a deceived buyer?
Instruction
A few words should be said about the differences between natural and its fake. Genuine pearls are formed by getting a grain of sand inside the shell of a mollusk, which reacts to the ingress of a foreign body and begins to envelop it with its nacre. They learned to imitate this process by placing a bead inside the shell, which is removed after a while, already slightly covered with mother-of-pearl. It happens that a bead is simply coated with mother-of-pearl varnish and sold as natural.
If the seller claims that the pearls are natural, be sure to ask for an identification certificate, it must be compiled by a well-known and reputable laboratory with the appropriate seals. So, to confirm its authenticity, pearls are subjected to X-ray examination. There are simpler methods that will help you from the pearl. A real pearl is quite heavy, which cannot be said about the artificial material. If the pearls are gently rubbed against each other near the ear, then the sound of rubbing sand should appear.
You can check the seller pearls for fear. Take a pearl and offer to set it on fire, a natural product should not melt. Most likely, the seller will be afraid for the damaged goods and will tell you all about its authenticity.
Pay attention to the crown. The original has an image of a crown. On some models, there is a rubber ring that is visible when the crown is opened. In a fake, such a detail is created only for a visible effect. In the original watch, the rubber ring is designed to improve the functioning of the crown;
On some ROLEX models, three dots are visible under the crown, also indicating the original;
The box in which the watch is sealed is made of paper and has a holographic image. You need to pay attention to the image of the holography and make sure that it shimmers. On a real watch, a crown will be visible, under which black numbers will be embossed. If the numbers are shown in a different color or there is some other deviation, it is a fake;
Above the date of the ROLEX watch there is a , which enlarges the picture by two and a half times. In fakes, such glass is either completely absent or has a lower magnifying power. The date may be written in large numbers;
In the early 2000s, additional protection against fakes was introduced. Above the number six is a micro-engraving in the form of a crown. It can only be seen under a magnifying glass. In fakes, the quality and size of the crown are far from the original;
The case number must have even numbers and letters, and is also located between the sides of the watch;
The shape and length of the hour hands. They should be pointed and reach the divisions of the dial.
Before buying a ROLEX watch, you should familiarize yourself with its distinctive features. This is the only way to avoid counterfeiting and not to spend in vain.
Sources:
- Ways to check the authenticity of a ROLEX watch
