Gold purity is measured as a number out of 24, where 24 represents pure gold. In the US this unit is spelled 'karats', with a 'k'.
Gold is a naturally soft metal, so higher karat gold is softer, while lower karat gold is more durable thanks to metal alloys. Depending on the metals it is mixed with, gold alloys can take on a distinct hue.
14K Gold is a common material choice because of its balance between durability and luster.
Note: karats are not to be confused with carats, which is a measurement of a gemstone's mass.
| Karat | % Pure Gold | Durability | Color Richness | Best For |
|---|---|---|---|---|
| 10K | 41.7% | Very high | Light | Budget-friendly, high-wear pieces |
| 14K | 58.3% | High | Balanced | Everyday fine jewelry |
| 18K | 75% | Medium | Rich | Luxury pieces, moderate wear |
| 22K | 91.6% | Low | Very rich | Special-occasion jewelry |
| 24K | 99.9% | Very low | Deep gold | Investment or ceremonial pieces |
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