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Different kinds ofgold jewelry

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The composition of the metal in any part of pure gold jewelry and Kgold jewelry is the same, while the wrapped gold jewelry is two or more kindsof metal attached or forged together, wrapped in each other, and the metalcomposition is different in different parts. Its surface is gold cheap promiserings, and the interior is copper and silver.
Gold-plated jewelry is made of copper on the surface of the jewelry.It is plated with a layer of gold, but the coating is generally thin, around 3to 5 um. This gold-plated jewelry necklaces for girlfriend is bright and soft,but not durable, just as easy to wear as a gold-plated strap, revealing a brassblank and a dim yellow.
Gold Filled is also known as filled gold in the United States. Goldfilled jewelry is a layer of gold foil on a copper or silver plate familynecklace. The thickness of the gold foil is between 10 and 50 mm. As thethickness of gold foil is thicker than that of gold plating, the appearance ofgold jewelry is similar to that of gold jewelry. This kind of gold filledjewelry has the mark of K F in the United States. If the gold foil is ISK gold,it will be marked with 18KF on the inside of the jewelry custom name rings.
Gilding is an ancient gold-plating craft. It is uniformly coatedwith a thick layer of gold and mercury on copper, silver and other low-costjewelry personalized mothers rings. It is then baked at low temperature. Whenthe mercury is heated, it evaporates, and the gold clings to the surface of thecopper, which is then flattened and polished. Currently, this method is rarelyused. Because the surface of the wrapped gold jewelry has a very thin layer ofgold, it is deceptive, but it still retains the characteristics of copperproducts, such as low density.
How to distinguishreal and false gold with the naked eye
1.Imprint
All precious metal jewelry according to international regulationsmust be marked on the inside of the jewelry. The imprint requires marking theimprint content and the manufacturer. Any gold content more than 990 can becalled a full gold.
2.Quantity
The density of gold is 19.32g/cm3, which is more than twice thedensity of copper. Gold cheap necklaces in hand has the feeling of falling andcopper in hand is heavy but without the feeling of falling.
3. Hardness
Solid gold jewelry has a hardness of 2.5, which is about the same asa human nail, so you can make fine marks with your nails.

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