How to distinguish the quality of goldPosted On September 7, 2022Related Posts What are the names of ancient women's headdress and buns? Which brand of diamond ring is better? Will there be no difference between gold and gold in the future About The Author GoodBoy5 Comments Santos Discovery Gold: The identification of gold jewelry requires some experience in gold. Here are only some identification methods. (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 be used to draw light marks with nails. Teeth bite can leave dental marks. High -colored gold jewelry is low in color. It can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. (4) Listening to the sound: Throwing the real gold with more than 99 % of the color 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 the fire (do not melt the jewelry). After cooling, observe the color change. If the surface is still the original golden color is pure gold; It 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)看标记：国产黄金饰品都是按国际标准提纯配制成的，并打上戮记，如“24K”标明“足赤”或“足金”；18K金，标明“18K”字样，成色低Those who are in LOK can not play the K -printed number according to regulations. 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. September 7, 2022 Log in to Reply Angel Gold identification method: . Observation color: By according to the experience of the folk "Qiqing, Eight Yellow, Nine Five -Five Reds", observe the withering of the golden color. Determine the color and true and false; . Seeing the mark: The gold jewelry is engraved with the font size of the manufacturer and the color of gold (K). If the trademark is correct and the handwriting is clear, the color will be basically clear; if there is no poke, the re -rolled gold jewelry can be tested on the test stone. three, 量 weight The proportion of gold is second only to platinum. True gold should feel heavy in your hands, and fake gold feels more. . Test hand feel: This can gently bend the jewelry that feels softer to the real gold, otherwise it is fake gold. The above is a physical method to test the gold, and its accuracy is not very high. If you want to identify gold more accurately, it is best to use a chemical method. The specific method is as follows: Mosted the gold jewelry on the test gold stones a few times, then click a few drops of nitric acid and ash, and rinse the silver and copper ingredients with water. There is nothing to stay. If the golden yellow lust is left on the gold medal, the amount of contract can be obtained. The identification of gold jewelry can also be used to use the golden -colored measurement instrument. Determine the color and true and false values based on the measured K value and density values. However, this instrument is accurate to determine the solid jewelry, while the small and hollow gold jewelry errors are large. I personally think that you better go to a special testing agency to check, which is relatively stable. I met a friend. The gold jewelry I bought in a large shopping mall a few years ago did not go to identify it after several years. It was found that it was fake. Because I bought it in a large shopping mall, I found the merchant and took out the test report. As a result, the money was returned. Therefore, it is more relieved to buy things in a large shopping mall. September 7, 2022 Log in to Reply Michael If the necklace, ring and the like, as long as the ingredients of the brand's gold itself are similar, mainly to see the craftsmanship, whether the overall shape is beautiful, whether the corner details are exquisite, whether there are burrs, etc. , Fashion trends and so on. September 7, 2022 Log in to Reply Daisy 1 Bite 2 and pick it up. September 7, 2022 Log in to Reply Tracey Big brands are more trustworthy. Look at the purity on the tag and look at color. September 7, 2022 Log in to Reply Add a Comment Cancel replyYou must be logged in to post a comment.