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🌟 Understanding Gold Purity & Hallmarking
Gold is measured in karats (K) or fineness (parts per 1000). Higher karats mean more pure gold, while lower karats include a greater percentage of other metals to improve strength and durability.
📊 Gold Purity Chart
| Purity Mark | Karat (K) | Fineness | % Pure Gold | Common Use | BIS Hallmark Example |
|---|---|---|---|---|---|
| 999 | 24K | 999 | 99.9% | Coins, Bars (Not for jewelry) | BIS Logo, 24K999, Assayer ID, Jeweller ID |
| 916 | 22K | 916 | 91.6% | Indian Jewelry (Most popular) | BIS Logo, 22K916, Assayer ID, Jeweller ID |
| 750 | 18K | 750 | 75.0% | Premium Jewelry, Studded | BIS Logo, 18K750, Assayer ID, Jeweller ID |
| 666 | 16K | 666 | 66.6% | Light Jewelry (Less common) | BIS Hallmark if certified |
| 585 | 14K | 585 | 58.5% | Affordable / Western Jewelry | BIS Logo, 14K585, Assayer ID, Jeweller ID |
✅ BIS Hallmark (India): A certification by the Bureau of Indian Standards (BIS) confirming the gold purity as tested by a BIS-recognized Assaying & Hallmarking Centre.
🔐 Components of a BIS Hallmark (Post 2021)
- BIS Logo
- Purity in Karat & Fineness (e.g., 22K916, 18K750)
- Assaying Centre’s Identification Mark
- Jeweller’s Identification Mark
📌 Why Choose Hallmarked Gold?
- Ensures you're getting the purity you pay for
- Certified by a government-approved body
- Mandatory in India for jewelry above 2g (as of June 2021)
