Hallmark check
Check your gold in two minutes
Every hallmarked gold piece carries a 6-character HUID. You can verify it yourself, free, on your phone. Here is how, for jewellery from us or from anyone else.
The three marks
Look inside a ring, on the hook of an earring or near the clasp of a chain. A magnifying glass helps.
BIS mark
22K916Purity
AB12C3HUID
- Install BIS CARE
The official free app of the Bureau of Indian Standards, on the Play Store and the App Store. Sign in with your name, phone and email.
- Tap "Verify HUID"
It is on the app's first screen.
- Type the 6 characters
Letters and numbers, exactly as marked on the piece or printed on your bill.
- Match what it shows
The type of article and the purity should match the piece in your hand and your bill.
What the app shows
Purity (for example 22K916)
Type of article (ring, chain, bangle…)
The jeweller's BIS registration number
The hallmarking centre and the date
Purity grades you will see
| Mark | Pure gold | Used for |
|---|---|---|
| 24K995 | 99.5% | Coins and bars |
| 23K958 | 95.8% | Rare, very soft |
| 22K916 | 91.6% | Most Punjabi jewellery |
| 20K833 | 83.3% | Harder pieces |
| 18K750 | 75% | Diamond and stone settings |
| 14K585 | 58.5% | Light daily wear |