Purity, Hallmark & Care
How to Test Silver Purity
Hallmark, XRF, magnet, ice and acid tests explained.
Rates as on 26 September 2026 · Updated 27 September 2026
Today’s silver (Delhi)
₹2,50,000/kg
₹250 per gram, excl. GSTOverview
The most reliable proof of purity is a BIS hallmark with HUID or an XRF (X-ray fluorescence) test at a jeweller or assaying centre. Home tests can only rule out obvious fakes.
| Particular | Details |
|---|---|
| Most reliable | BIS hallmark + HUID, XRF test |
| Home checks | Magnet, ice, polish-cloth |
| Destructive tests | Acid / fire assay — only by professionals |
Tests compared
| Test | Reliability | Note |
|---|---|---|
| Hallmark / HUID | High | Non-destructive |
| XRF test | High | Non-destructive |
| Magnet test | Low | Silver is not magnetic |
| Ice test | Low | Silver conducts heat — ice melts quickly |
| Acid test | Medium–High | Scratches item; professionals only |
| Fire assay | Highest | Destructive; used for bullion |
Frequently asked questions
Where can I test silver?
Most large jewellers and BIS-recognised assaying centres offer XRF testing for a small fee.
Silver rates are indicative market references (26 September 2026) and change during the day. Rules on tax, hallmarking and investment products can change — verify with official sources. FinancePortal does not sell silver.