International Gold Karat Chart
The international gold karat chart is a system used to classify the purity of gold alloys. Gold alloys are mixtures of gold and other metals, such as copper, silver, zinc, or palladium. The karat system is based on 24 parts per weight, with 24 karat gold being pure gold (99.9% gold).
The following table shows the international gold karat chart:
| Karat | Gold Content | Purity |
|—|—|—|
| 24K | 99.9% | Pure gold |
| 22K | 91.6% | Very high purity |
| 18K | 75% | High purity |
| 14K | 58.3% | Medium purity |
| 12K | 50% | Lower purity |
| 10K | 41.7% | Lowest purity |
The karat system is used to describe the purity of gold jewelry, coins, and bars. It is also used to determine the value of gold. The higher the karat, the more valuable the gold.
It is important to note that the karat system is not the same as the fineness system. The fineness system is based on 1,000 parts per weight, with 1,000 fineness gold being pure gold (99.9% gold).
The following table shows the conversion between karats and fineness:
| Karat | Fineness |
|—|—|
| 24K | 999 |
| 22K | 916 |
| 18K | 750 |
| 14K | 583 |
| 12K | 500 |
| 10K | 417 |
The international gold karat chart is a useful tool for understanding the purity and value of gold.
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