International Gold Karat Scale
The international gold karat scale is a system used to measure the purity of gold. It is based on the weight of pure gold in 24 parts. So, 24-karat gold is pure gold, while 12-karat gold is half gold and half other metals.
The karat scale is used to describe the purity of gold jewelry, coins, and bullion. It is also used to determine the value of gold.
Here is a table of the most common karat values and their corresponding purity:
| Karat | Purity |
|—|—|
| 24 | 100% |
| 22 | 91.6% |
| 18 | 75% |
| 14 | 58.3% |
| 12 | 50% |
| 10 | 41.7% |
| 9 | 37.5% |
The karat scale is not the same as the fineness scale. The fineness scale is based on the weight of pure gold in 1,000 parts. So, 24-karat gold is also known as 999 fine gold.
Here is a table of the most common fineness values and their corresponding karat values:
| Fineness | Karat |
|—|—|
| 999 | 24 |
| 916 | 22 |
| 750 | 18 |
| 583 | 14 |
| 500 | 12 |
| 417 | 10 |
| 375 | 9 |
Which karat is best for jewelry?
The best karat for jewelry depends on your personal preferences and budget.
* 24-karat gold is the purest form of gold, but it is also the softest. This makes it more susceptible to scratches and dents.
* 18-karat gold is a good compromise between purity and durability. It is still relatively pure, but it is harder than 24-karat gold.
* 14-karat gold is the most popular karat for jewelry. It is durable and affordable.
* 10-karat gold is the least expensive karat of gold. It is still durable, but it is not as pure as higher karat gold.
How to care for gold jewelry
Gold jewelry is relatively easy to care for. Here are a few tips:
* Store gold jewelry in a cool, dry place.
* Avoid exposing gold jewelry to harsh chemicals.
* Clean gold jewelry with a mild soap and water solution.
* Polish gold jewelry with a soft cloth.
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