Karat reference
Live melt value of one gram of gold for every common karat, calculated from the global spot price.
| Karat | Stamp | Purity | USD/g | EUR/g | GBP/g |
|---|---|---|---|---|---|
| 9K gold price per gram | 375 | 37.5% | $50.48 | €45.07 | £38.15 |
| 10K gold price per gram | 417 | 41.7% | $56.13 | €50.12 | £42.42 |
| 14K gold price per gram | 585 | 58.5% | $78.74 | €70.32 | £59.51 |
| 18K gold price per gram | 750 | 75.0% | $100.95 | €90.15 | £76.29 |
| 21K gold price per gram | 875 | 87.5% | $117.78 | €105.17 | £89.01 |
| 22K gold price per gram | 916 | 91.6% | $123.29 | €110.10 | £93.18 |
| 24K gold price per gram | 999 | 99.9% | $134.47 | €120.08 | £101.62 |
Karat measures how much of an alloy is pure gold, on a scale of 24. Because the market only pays for the gold content, the price per gram of any karat is simply the pure-gold price multiplied by its purity. A gram of 18k is worth exactly three quarters of a gram of 24k, whatever the spot price does.
Have several pieces in different karats? The scrap gold calculator adds them up and shows what a buyer is likely to pay. Prices are provided by MetalflowAPI.
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