Compare your result against these international scientific standards.
| Metal Quality | Expected SG |
|---|---|
| 24K Gold (Pure) | 19.32 |
| 22K Gold (Coin/Jewelry) | 17.70 - 17.80 |
| 18K Gold (High End) | 15.20 - 15.90 |
| 14K Gold (US Standard) | 12.90 - 14.60 |
| Sterling Silver | 10.36 |
| Copper / Brass (Fake) | 8.96 |