2. If you look closely, you can see the gold skin that seems to fall off. Second-hand goods show signs of fading. 18K gold craft is exquisite and shiny. Look at the steel seal of the commodity label.
3. Authentic 18K gold products are engraved with the steel seal of G 18K, 18K or 750, and the label name is 18K gold; The fake 18K gold seal is 18KGP or 18KGF, and the label name is alloy or 65438.
4. Looking at the after-sales service, the fake 18K gold cannot be repaired and welded, but the real 18K gold can be repaired, cleaned and polished.
Extended data:
18k gold contains 75% gold, which is a metal synthesized by melting gold and other precious metals. 18k gold is more used as an ornament, which is a kind of gold ornament with lower cost and more comfortable to wear. In other words, 18k gold is a kind of gold.
18k There are still some differences between gold and gold. Gold contains 18k gold, but gold is not equal to 18k gold. Because the gold content of 18k gold is only 75%, which is very different from pure gold.
Because 18k gold has higher hardness, lower toughness and higher brightness, it is not easy to deform and wear. When designing jewelry, you can make more articles and styles. Moreover, gold is too soft to withstand too fine processing and can't make more complicated designs. Therefore, ordinary gold jewelry can only be made in traditional style, and there can be no complicated design. So it is not easy to be deformed and damaged.
Baidu encyclopedia-18K gold