"18K Platinum" is not k Platinum, but a kind of White Gold (English name is white gold), and the English name of platinum is platinum. The so-called 18K platinum jewelry sold in the market is actually white 18K gold jewelry, which guarantees that the gold content is not less than 750‰, and the rest are copper, zinc, nickel, silver, palladium, rhodium, etc. Because of the different proportion of ingredients, different colors can also be produced, that is, 18K colored gold jewelry. In order to prevent misleading consumers, the standard stipulates that the name "K Platinum" or "Platinum" shall not be used, and it can only be labeled as "White 18K Gold" or "White 18K Gold" or directly labeled as "18K Gold".

There is no such thing as "18K platinum". Anything that is not marked with the word "PT" is not "platinum", that is, all platinum ornaments will be marked with the word "PT" no matter how low the content is! The so-called "18k platinum" is not "75% platinum plus 25% alloy!" Unless it is marked with "PT750", many of them are "75% gold and 25% alloy with rhodium plating on the surface".