purity
Gold Hallmarks Explained
What 999, 916, 875, 750 and 585 stamps actually mean.
Gold Hallmarks
| Stamp | Karat | Purity |
|---|---|---|
| 999 | 24K | 99.9% |
| 916 | 22K | 91.6% |
| 875 | 21K | 87.5% |
| 750 | 18K | 75.0% |
| 585 | 14K | 58.5% |
| 417 | 10K | 41.7% |
Always look for the country's official hallmarking mark alongside these numbers.