International Gold Karat Purity
Gold is a precious metal that has been prized by humans for centuries. Its value is determined by its purity, which is measured in karats. The higher the karat, the purer the gold.
The international standard for gold purity is the karat system. This system divides gold into 24 parts, with 24 karat gold being the purest form of gold possible. However, pure gold is too soft to be used in jewelry, so it is often alloyed with other metals to make it more durable.
The most common karatages for gold jewelry are 18 karat, 14 karat, and 10 karat.
* 18 karat gold is 75% pure gold and 25% other metals. It is a popular choice for engagement rings and other fine jewelry.
* 14 karat gold is 58.3% pure gold and 41.7% other metals. It is a good choice for everyday jewelry that will receive a lot of wear and tear.
* 10 karat gold is 41.7% pure gold and 58.3% other metals. It is the least expensive type of gold jewelry and is often used for children’s jewelry or costume jewelry.
In addition to the karat system, there are other ways to measure gold purity. These include:
* The fineness system measures the purity of gold in parts per thousand. 24 karat gold is 999 fine, while 18 karat gold is 750 fine.
* The millesimal system measures the purity of gold in grams per kilogram. 24 karat gold is 999.99 millesimal, while 18 karat gold is 750 millesimal.
When purchasing gold jewelry, it is important to understand the different karatages and purity measures. This will help you make an informed decision about the type of gold jewelry that is right for you.
原创文章,作者:杰克,如若转载,请注明出处:https://hengxing99.com/12169.html