Is 9K better than 10K?


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Is 9K better than 10K?

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Anonymous 2022-07-06T02:17:47+00:00 1 Answer 4 views 0

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    The gold used to make jewelry is not actually pure gold, because pure gold is very soft and malleable, which would cause many problems when used as jewelry – such as not holding stones easily, scratching easily, denting or breaking. Therefore, when making jewelry, jewelers often mix gold with other metals to form alloys of varying purity, which can also increase the durability of gold as jewelry to varying degrees.
    People usually measure the purity of gold in carats, and the different carat numbers represent the ratio of gold mixed with other metals.
    For example, pure gold is 24K, which means that it is a mixture of 24 parts gold and 0 parts other metals, but of course this pure gold is not generally used for jewelry making; 10K means that the alloy is a mixture of 10 parts gold and 14 parts other metals, meaning that the alloy is only 41.7% pure gold. 9K means that the alloy is only 9 parts gold, the rest is a mixture of 15 parts other metals, which is also This is the lowest gold alloy in terms of purity, at 37.5%.
    In the United States, the minimum standard of gold recognized by law for use in jewelry is 10K, and in other countries 9K gold may exist and be used in jewelry making. From this it is also clear that 10K gold is definitely superior to 9K gold. Since 10K gold is already less than 50% pure gold, 10K gold is durable enough for everyday use and there is no need to buy a much lower quality 9K gold for a higher durability. Secondly 9K gold will easily lose its luster due to the high 62.5% content of other metals, creating a copper green like color that can even transfer to your fingers or skin! Therefore,if you can only choose between 10K gold and 9K gold, I definitely recommend you to choose 10K gold. Unless your budget is only enough to afford 9K gold jewelry, and of course you will find almost no American jewelry stores that offer 9K gold.

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