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How does Zhou Dajin Diamond Ring? What is going on?

4 thoughts on “How does Zhou Dajin Diamond Ring? What is going on?”

  1. If it is a real platinum ring, it is impossible to turn black. If you turn black, you can be sure not to buy a platinum ring. Theoretically, platinum does not turn black. Platinum is extremely hard, and its strength is twice the gold, and its toughness is much higher than that of ordinary precious metals. Platinum color; strong ductility; melting resistance, friction resistance, corrosion resistance; chemical stability at high temperature. Therefore, it can be said that it is small affected by the outside world. The luster and color of platinum can stand the test of time. In the conversion of time, it can still maintain its original luster. Platinum white gloss can better reflect the shining of diamonds. However, jewelry needs to be maintained. Although the platinum itself does not change color and turmoil
    , the ring has been worn for a long time, and it is inevitable that some stains will be attached, causing the platinum ring to become darkened on the surface or local darker. This situation may occur. The flowers that have been cleaned can squeeze the toothpaste on the towel, then rub it back and forth on the platinum diamond ring, remove the fine lines and dirt on the surface, clean it with the diluted cleaning solution, then rinse it with water, and then recover to recover. The original luster. Buy gold and silver jewelry to choose a regular place to buy, don't be greedy for cheap.

  2. If it is a real platinum ring, it is impossible to turn black,
    If it turns dark, you can be sure that you are not buying a rings with platinum
    . Theoretically, platinum does not turn black. Platinum is extremely hard, and its strength is twice the strength of gold, and its toughness is much higher than ordinary precious metals. Platinum is beautiful; strong ductility;
    The melting, friction -resistant, corrosion -resistant; chemical stability at high temperature. Therefore, it can be said that it can be tested by the time of the time, the luster and color of the platinum can be tested. In the conversion of time, we can still maintain its original gloss.
    The white gloss of platinum can better reflect the shining of diamonds. However, the jewelry needs to be kept
    . Although the platinum itself does not change color and black, the ring has been worn for a long time. It may happen.
    The flowers that have been cleaned can squeeze toothpaste on the towel, then rub it back and forth on the platinum diamond ring, remove the fine lines and dirt on the surface of
    Rinse dry with water
    , you can restore the original luster.

  3. All gold can be identified according to the standard method:
    (1) See color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.

    (3) Look at the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth prints. High -colored gold jewelry is low and soft, with copper with copper, contains copper containing copper, contains copper containing copper The harder, the harder, the bending method can also test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.

    (4) Listening to the sound: Real gold with a color of more than 99 % throwing it on the hard ground, it will make a tap sound, there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.

    (5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with fire (do not melt the jewelry), and observe the color change after cooling. Dark or different degrees of darkness is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.

    (6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; The word "18K" is marked, and those who have a lower color are lower than LOK. At present, illegal elements are commonly used to manufacture fake cards and imitation stamps in the society. They use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality of the real.

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