3 thoughts on “How to identify the quality of earrings?”

  1. Look at the color:
    The higher the purity, the whitening the silver, the surface of the jewelry looks uniform and bright, and the color is moist. If it contains lead, the jewelry will show blue and gray; such as copper, the surface of the jewelry will appear rough, and the color is not moisturized.

    Illar weight:
    The silver density is slightly larger than the general common metal. Generally speaking: "aluminum light, silver weight, copper is not light and not heavy." Therefore, weight weight Can make a preliminary judgment on whether it is silver. If the jewelry is large and the weight is lighter, it can be preliminarily determined that the jewelry is other metals.

    The hardness:
    The silver hardness is lower than that of copper, and it is larger than lead and tin. It can be judged as copper jewelry; if it is a lead and tin texture, the traces are obvious and prominent; if there are traces of the physical object, but not obvious, it can be initially determined as silver accessories.

    This sound rhyme:
    This silver jewelry throwing sound, no elasticity, the sound is "卟 卟 卟". The lower the color, the lower the sound, and the higher the sound, the higher the rhyme; if it is copper, the sound is higher and sharp, and the rhyme sounds are short and short; , No elasticity.

    18kgp, 23kgp is a sign of alloy simulation jewelry.
    . They are composed of two logos. 18K or 23K is a logo. K represents the gold content, that is, the gold content of gold, the relationship of K numbers and gold content: AU WT% = K / 24 × 100% The national standard GB11887-89 stipulates that the gold content per K is 4.166%.
    GP is the abbreviation of the English GOLD PLAPE, which is commonly known as forging gold. This logo means that the product is mostly based on phosphorus and copper as the main material, forging at high temperature, and then covers the gold -plated layer. According to the different thickness of the gold layer, it is divided into two types: gold -plated and gold -packed gold. The thickness of the gold -plated gold layer is about 1 Mi (MIC (MIC) is the golden layer thickness units specified in international standards), and the gold is about 3 mi. 18K or 23K refers to the golden content of the gold plating layer outside. Speaking of which, some people may ask here that most of the jewelry of 18KGP and 23kgP is white instead of yellow. This is a kind of confusion about pure gold and K gold. One of the characteristics of pure gold is soft, so when inlaid gemstones are inlaid, it is easy to fall off due to insufficient strength. Therefore, people add metals such as silver, copper, zinc to increase the strength and toughness of gold in gold, and the gold jewelry made, also known as K gold. Almost all K golds with different K gold are inlaid in jewelery inlaid. In this way, it can achieve the nobleness of gold and make up for its deficiencies. It can also be prepared into various colors as needed. The popular K gold jewelry internationally has various colors, and common ones are yellow and white. K gold is divided into color gold alloy and white gold alloy according to the color. The color gold alloy that is used most in the jewelry is AU-AG-CU (-zn) alloy; most of the white gold alloy is AU-AG-NI (CU, Zn) and AU-AG-PD (-zn, CU) Department of alloys. Mixing 25%of 入 or nickel. Zinc, etc. in gold, it will become white, which is the main component of its gold. This is called white K gold, commonly known as K platinum. (Note that Platinum and platinum are not the same concept. Many traitors play text games to deceive consumers. The golden layer is a gold -plated or gold jewelry of 18K gold;
    23kgp specifically refers to its gold plating or gold jewelry of 23K gold.

    925 or silver 925, S925 is a sign of silver jewelry.
    Ifins at the bottom of precious metals, one -tenth of gold. In the design of jewelry design, there is almost no need to consider its cost factors. It can produce many avant -garde. There are many avant -garde. Exaggerated, luxurious, and thick jewelry. Therefore, silver jewelry has become another life for simulation jewelry.
    The silver can be divided into two categories: foot silver and tattoo silver:
    This silver content is not less than 990. Because it is too soft, it is not easy to cast the shape of the jewelry, and it is easy to wear and oxidize and turn black. Therefore, it is not suitable for jewelry production.
    This silver content silver content is not less than 925. Also known as "925 silver", the pattern silver usually uses 92.5%silver to add 7.5%copper mixed synthesis. Because the bronze is mixed with copper, the gloss of its finished product after polishing is more beautiful than the foot silver, so it is often used as jewelry materials and silver utensils. This is the raw materials commonly used on the market. In order to increase the luster of 925 silver jewelry and reduce its oxidation, some manufacturers will also be plated on it (note that it is platinum instead of platinum). This type of product industry is commonly known as real gold and silver products.

    The is worth mentioning that many formal jewelry manufacturers have their own registered trademarks. These registered trademarks are generally printed on the nameplates of some jewelry, such as necklaces, bracelets, and ankles chains. There will be an nameplate at the buckle, engraving the registered trademark of the product. Ring and earrings generally do not have registered trademark brands, but are equipped with tags.

    Is through my introduction, you can buy a cheap and good -looking, good -looking jewelry

  2. These jewelry passes through electroplating
    , so it looks the same
    If it is an electroplated jewelry, I am afraid of alkaline substances
    Really won't be back,

  3. Pay content for time limit to check for freenAnswer 1. 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 the golden gold. The so-called green gold is only a silver component in the gold); the dark red yellow color is more than 95%, and the light red yellow yellow 90-95%is 90-95% The pale yellow is 80-85%, the cyan is 65-70%, the color blue with white light is only 50-60%, and the slightly yellow and white are less than 50%. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. Second, listening to the sound of more than 99%of the real gold to throw 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. Third, the proportion of weight 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. Fourth, the measuring hardness is soft and low, and the hardness is low. The nails can be used to draw a shallow mark. The teeth can leave the dental marks. The high gold jewelry with a high color is low. Test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend.

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