cheap wholesale 14k gold jewelry What are the common sense of gold jewelry?

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cheap wholesale 14k gold jewelry

3 thoughts on “cheap wholesale 14k gold jewelry What are the common sense of gold jewelry?”

  1. Miriam

    top wholesale jewelry suppliers There are many ways to identify gold jewelry. The folk summarizes the simple method. The formula is: look at color, weight, listening rhyme, folding hardness, stone grinding, contrasting cards, and setting into color. The first four sentences rely on the eyes and the feeling, and the last four sentences need to be used by tools and reagents.
    1. Look at the color. According to the different gloss and color of gold, you can generally distinguish pure gold, K gold and real gold, fake gold. Gold is better with red yellow, with a color of more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%. Therefore, there is a formula for "Qiqing, Eight Yellow, Nine Five Five Reds, yellow leucorrhea ash pairs of gold." For jewelry from Jiu Tibet, there will be a saying that "copper turns green, silver turns black, and gold will never change color".
    2. Look at the density. The density of gold is 19.32 grams/cubic centimeter, which is about double the same volume of silver, lead, and tin.
    3. Folding hardness. Gold has the characteristics of ductility and small hardness, and can be pressed into extremely thin slices. When the color is high, marks can be left with large head needles or nails. More than 97%of gold jewelry, after twisting two or three times, wrinkles appear at the bending, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; about 90%of the golden gold golden gold; The jewelry is very hard when the bending is bent, without fish scales; gold jewelry containing more impurities, bend twice or three times to break; if it is made for raw gold, it is broken when it is curved. When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer.
    4. Listen to the rhyme, see elasticity. When the high -quality gold jewelry is knocked down or threw it hard, it emits a dull sound of "hits, dwells", and has no rhyme and elasticity. The more pointed the older, the worse the color.
    5. Use the test stone to identify the color. Using gold -pairing cards (gold medals that have been determined) and the test jewelry on the test gold stone, through comparison colors, the gold jewelry is determined. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps.
    6. Use acid point. Differented the golden trails of the jewelry and the cards on the test stone, and testing the nitric acid on the golden road with a glass stick. Because the chemical properties of the golden element are stable and do not respond to the acid, the color remains unchanged. If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low color disappears quickly, and the high color disappears slowly; Depending on the disappearance of its golden road, the cards can be determined by the right card.

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