Domestic gold ornaments are purified and prepared according to international standards and marked with seals. The higher the purity of gold jewelry, the darker the color. In the absence of a gold medal, the general fineness can be determined according to the following colors.
Gold jewelry should feel heavy in your hand, while fake gold jewelry feels light and floating. Real gold with a purity of more than 99% will beep when thrown on the hard ground, which is disorganized and elastic.
Extended data:
1, naked eye identification method: we can hold the necklace with our hands and observe it in the sun. Generally, real necklaces will be brighter and fake necklaces will be darker.
2, tapping identification method: take a slightly hard thing, put the necklace on a flat table, gently tapping the real necklace with something will knock off the oxide layer on the surface, but it will not shine after false tapping.
3, voice recognition method: hold the necklace gently on the concrete floor, if you hear a dull sound, it means that the purity of the necklace is higher, on the contrary, if the sound is brittle, the more fake it is.
4, oxidation identification method: pour vinegar into the bowl and then put the necklace. After a while, take out the necklace and observe the brightness of the surface. What looks shiny is usually true.
5. Appraisal method: You can get relevant appraisal institutions for appraisal, which is the most intuitive and accurate method.
Baidu encyclopedia-gold jewelry