The difference between 18 karat and 21 karat gold
Gold has been used in jewelry for thousands of years, and is known for its beautiful color and luster. The purity of gold is measured in the "karat" unit, where the karat refers to the proportion of pure gold in the piece. 24 karat gold is the purest type of gold, containing 99.9% pure gold. 18 karat gold contains 75% pure gold, and the rest is made of other metals such as copper, silver and zinc. 21 karat gold contains 87.5% of pure gold, and the rest is from other minerals.
24 karat gold is distinguished by its beautiful color and luster, but it is much softer than 18 or 21 karat gold. This means that it is more susceptible to scratches and tarnishing. 24k gold is also more expensive than 18k or 21k gold.
18k gold has a greater hardness than 24k gold, making it more durable and less prone to scratches and tarnishing. 18k gold is also less expensive than 24k gold.
21k gold has a higher hardness than 18k gold, but it is less ductile than 24k gold. 21k gold is also more expensive than 18k gold, but less expensive than 24k gold.
The following table shows the difference between 18 and 21 karat gold:
Factors affecting the choice of gold karat
There are many factors that influence the choice of gold karat, including:
- Budget : 24 karat gold is the most expensive type of gold, while 18 karat gold is the least expensive.
- Age: 24k gold is softer than 24.18k gold, so it may be the best choice for children and teens. 21.18k gold is more solid, so it may be the best choice for adults.
- Personal Style: If you prefer classic jewellery, then 21k gold is the best choice for you. If you prefer trendy jewelry, then 18k gold is the best choice for you.
- Environmental Conditions: 24k gold is more susceptible to scratches and tarnishing in harsh environmental conditions, such as swimming. 18k gold is less prone to scratches and tarnishing, so it may be a better choice for people who live in areas with harsh environmental conditions.
uses
- Uses of 21 karat gold: 21 karat gold is used in the daily jewelry industry, as it is characterized by the beauty of its color, luster, and reasonable cost. It is also a good choice for jewelry to be worn on special occasions, as it has good hardness and scratch resistance.
- Uses of 18 karat gold: 18 karat gold is used in making jewelry that will be worn on a daily basis, as it is less expensive than 21 karat gold. It is also a good choice for jewelry that will be worn in places where it may be scratched or damaged, as it is more easily damaged. Formation and manufacture of 21 karat gold.
What is the best karat for gold?
There is no best karat of gold, the best depends on individual needs. If you are looking for the purest gold, then 24k gold is the best choice for you. If you are looking for the most solid and scratch resistant gold, then 18 or 21 karat gold is the best choice for you.