In India, the Bureau of Indian Standards (BIS) has expanded the list of mandatory hallmarking grades to include more than just the common 22K (916) and 18K (750) options.
| Karatage | Fineness Mark | Purity Percentage | Common Use |
| 24K | 999 / 995 | 99.9% / 99.5% | Investment (Coins & Bars) |
| 23K | 958 | 95.8% | High-purity jewelry/coins |
| 22K | 916 | 91.6% | Most popular for traditional jewelry |
| 20K | 833 | 83.3% | Custom or antique-style pieces |
| 18K | 750 | 75.0% | Diamond & stone-studded jewelry |