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What is the Difference Between 24k, 22k, and 18k Gold?

What is the Difference Between 24k, 22k, and 18k Gold? What are 22ct gold, 24ct, and 18ct gold in India? Gold purity is measured in carat which is likely 24k, 22k, and 18k.

Carat is basically a term that stands to check the purity of gold, the higher carat indicates the more purity of gold. Let’s understand the characteristic of 24k, 22k, and 18k in detail.

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24 Carat Gold

If the gold is 24 carat it is considered almost 100 (99.99) percent pure gold. It is without mixing any other metal as an alloy in gold and it is 99.9 percent pure gold.

It is important for you to understand that there is no higher than 24 carat gold in the market before you go to any dealer to buy gold and they make you fool by telling you that they are selling 25-carat gold.

24 carat gold is the purest form of gold so it is more expensive than 22 carats and 18-carat gold. Nonetheless, 24k gold is low density so it is not good for making jewelry compared to another carat of gold but the gold bars and coins are bought in the purity of 24k gold.

24 carat gold is mostly used in high-end electronics and medical devices, for example, medical equipment which is used in curing children of ear infections, etc.

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22 Carat Gold

22 carat gold is considered 91.67 percent pure gold. 22ct gold is used to make jewellery because of mixing of some other metals makes jewellery stronger.  22ct gold is most commonly used for jewellery making purposes.

Metals that are mixed in 22ct carat are silver, nickel, zinc, and some other alloys. It is only possible to make the jewelry durable by the addition of these metals. However, 22ct gold is not considered for diamonds and heavy jewelry.

18 Carat Gold

18ct gold is 75 percent gold with an addition of 25 percent of other metals like silver and copper etc. Nonetheless, 18ct gold was used to make the diamond and other speckled jewelry. The 18-carat gold price is comparably less than 24 carat and 22 carat gold.

It is simple to recognize the 18ct gold because it comes with stamped 18k, 18kt, and marketed by 750, 0.75, and similar types of stamps which make it easy to recognize 18-carat gold which contains 75 percent gold.

Based on which gold fineness calculated

Carat is communicated as fineness in western countries which means 24ct is considered as 1000 parts out of 1000 pure or fineness. 22ct communicated 22 divided by 24, multiply by 1000 which gives 0.9166 of fineness. 21 carat is 21 divided by 24 and multiplies by 1000 which gives 0.875 and it is similar for 18ct and which gives 0.750 fineness.

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Assorted Colours of Gold

24 carat gold colour is naturally warm and the colour of 24ct gold can’t be changed without changing the gold purity from 24ct to lower carats like 22ct and 18ct gold. Gold colour can be changed by changing the composition of the alloy while making the jewellery. A few of the common gold colour is mentioned below.

Rose and Pink Gold – This kind of gold colour comes or is formed when more copper compassion used in alloy gold.

Green Gold – Adding silver and zinc results in the green colour of gold.

White Gold – By adding more palladium and nickel compassion in alloy results in white gold

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The Final Word!

24 carat gold contains 24 parts of pure gold whereas 22 carat gold contains 22 parts of gold and it is mixed with 2 parts of other metal. Similarly, 18ct gold contains 18 parts of pure gold and is mixed with 6 parts of other metals.

24ct is 99.5 percent pure gold and above, 22ct gold is 91.7 percent pure gold, and 18ct gold is 75.0 percent of pure gold. For other finance, info visit

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