Gold Purity and Color Indication: What is the difference between 24K, 22K, and 18K gold?

Different carats of gold
Karat is the purity or amount of gold. Before we can distinguish between 24K, 22K and 18K gold, it is important to know our karat. The purity of gold is measured in carats. You will need more carats to make your gold purer. This guide will explain the differences between 24K and 22K gold, as well as 18K and 19K.
24K gold

24kt gold can also be known as pure or 100 percent gold. Each of the 24 parts is pure gold without any metal markings. It is 99.9% pure, and it has a distinctive bright yellow color. You cannot buy gold less than 24K. Be aware that sellers may try to sell you 26K, 25K or more gold before you actually go to them. It is rarer than 22K or 18K gold because it is the purest type of gold.This gold is lighter than carat gold. This makes it flexible and more soft. This makes it not suitable for everyday jewelry. Many coins and bars come with 24K Gold purity. Electronics and medical equipment use 24K gold, including gold thymopostomy tube attachments that are used to attach to infected children's ears. This is known to improve the air quality in the middle ear.
22K gold

22K gold jewelry is made of 22 pieces of gold and two other metals... This type of gold is commonly used to make jewelry. Of 100 percent of 22K gold, only 91.67 percent is pure gold. The remaining 8.33 percent are other metals such as silver, zinc, nickel, and other alloys. The addition of these metals makes the gold structure harder so that the jewelry is durable. However, you must know that although this gold can be used to make jewelry, 22K gold is not suitable for diamond and heavy jewelry rich jewelry.
18K gold

18K gold 75 percent gold mixed with 25 percent other metals such as copper or silver. Usually, heavy jewelry and other diamond jewelry are made of 18K gold. This type of gold is less expensive than 24K and 22K. The color of this gold is slightly dull. 18K jewelry is relatively easy to recognize - you will see 18K, 18Kt, 18k, or an impression on the thing. Occasionally, the 18K gold number is imprinted with 750, 0.75, or so, representing 75% gold jewelry.
How is purity calculated?
In the west, karat is expressed in purity. For example, 1000 parts of 24 k gold 1000 are described as purity or 1.000. 22k divided by 22 into 24k multiplied by 1000, which will give you purity of 0.9166, 21 karat 21 divided by 24 by 24 born by 1000 which will be 0.875 purity and similarly 18 carat will be 0.750 purity.
Different colors of gold

The natural bright color of pure gold of 24-carat gold and its color purity cannot be changed without changing from 24K. Other shades of gold can be made by changing the type of alloy in the jewelry. Pink and gold, for example, are made by adding more copper to gold alloys. Similarly, green gold adds more nickel than zinc and silver and white gold. Electro-plating can also be used to color gold. However, it can only be a top beauty and will go up over time.

24-carat gold contains 24 parts pure gold. Of the 22 carat gold, 22 details are gold, and two pieces of other metals are added as an alloy. 21-carat gold contains 21 parts gold and three parts of different metals. The 18-carat gold has 18 parts of pure gold and six parts of other metals. In the west, karat is expressed in purity. For example, 1000 parts of 24 k gold 1000 are described as purity or 1.000. In the case of 22k, 22 is divided by 24 and multiplied by 1000, which will give you a purity of 0.9166, 21 carats, 21 will be born by 1000 by dividing 21 by 24, which will be 0.875 similarly, 18 carats will be 0.750 purity.

24 carats = 100% carats or pure gold
22 carats = 91.7% gold
18 carat = 75.0% gold
14 carats = 58.3% gold
12 carats = 50.0% gold
10 carats = 41.7% gold