If a silver chain is stamped '925' or a coin is labelled '999', how can an Indian buyer decide whether to trust the claim? Social media often recommends a magnet, an ice cube or a rubbing test. These may reveal something about the object, but none of them measures its fineness reliably. The strongest approach combines paperwork, a verifiable hallmark where applicable, inspection of the actual item and professional testing when the value or uncertainty warrants it.
Begin with the seller's exact claim
Ask whether the piece is solid silver alloy, silver plated, silver coloured or contains non-silver structural parts. Those words describe different products. A plated object can look like silver because the surface really does contain some silver while the material beneath it does not. The overall recoverable silver content can therefore be far lower than the surface appearance suggests.
For jewellery, 925 describes silver fineness of 925 parts per thousand. 999 describes 999 parts per thousand. A stamp conveys a claim, not automatically a laboratory-verified composition. India's latest BIS silver-jewellery standard, IS 2112:2025, lists approved hallmarking grades and introduced HUID-based verification for silver jewellery and articles hallmarked under the revised voluntary scheme from 1 September 2025.
Check BIS HUID when the article is hallmarked
For a post-transition silver item represented as BIS hallmarked, look for the BIS Standard Mark with SILVER, the purity grade and the HUID. Use the official BIS Care app to check the unique six-character identifier and compare the result with the actual object. The government's 2025 announcements clarify that the overall silver hallmarking programme remains voluntary while HUID is required on newly hallmarked silver items.
A genuine hallmark helps establish traceability, but it does not certify the shop's selling price or the fairness of its making charge. Keep the invoice and verify the net metal weight separately. A plated spoon or decorative product might not be represented under the same hallmarking scheme as a silver jewellery piece; check the specific claim rather than assuming every shiny item requires the same mark.
Why popular home tests are not proof
- Magnet: a strong attraction can raise suspicion of a magnetic core. But copper, brass and many other non-silver materials also do not stick to a magnet. Passing the test cannot prove 925 or 999 fineness.
- Ice cube: silver transfers heat efficiently, so melting behaviour can be interesting, but starting temperature, surface area, the object's mass and other conductive materials affect the outcome. It is not a purity assay.
- Tarnish and cloth rub: the appearance and behaviour of a surface layer cannot establish the purity of the entire object. Plated objects and surface treatments can confuse the result.
- Weight alone: the correct stated mass is useful to verify, but similar-looking objects may use different dimensions, hollow construction or combinations of materials. A scale cannot measure silver percentage by itself.
- Acid or scratch test: these can damage jewellery and may sample only a local layer. Do not undertake a destructive test without informed permission and appropriate professional controls.
The point of screening is to identify reasons to ask for better evidence, not to declare a laboratory result from a kitchen experiment.
What can professional testing establish?
The BIS consumer-protection guidance states that ordinary consumers can have jewellery or samples tested at BIS-recognised Assaying and Hallmarking Centres, on a chargeable basis. Ask the centre which method it offers for your type of product and whether it will issue a written report.
X-ray fluorescence (XRF) is one common non-destructive analytical approach, but the London Bullion Market Association cautions that surface elemental analysis is not definitive for a heterogeneous or plated object. The correct conclusion depends on testing depth, sample representativeness and the method. If the object is valuable or suspected to have a different core, discuss whether additional methods or sampling are needed rather than assuming any one handheld reading proves its entire composition.
Professional testing may also distinguish a product's declared alloy from the specific fineness grade required by an agreed standard. Confirm costs and whether the test could damage the object, especially for antiques or sentimental jewellery.
A practical buying and dispute checklist
- Verify the actual product description, metal grade and seller identity.
- Match the net weight and purity shown on the written invoice with the item offered.
- Check the BIS HUID in the official app if the seller claims a current BIS hallmark.
- Obtain a price breakdown covering the metal, labour and applicable GST.
- For an uncertain high-value item, request testing by an appropriate qualified centre.
- Keep photographs, invoices and correspondence if the result conflicts with the seller's claim.
For unresolved complaints, BIS provides consumer-protection and testing information, and India's National Consumer Helpline offers a channel for broader consumer grievances. Read our dedicated silver HUID verification guide for step-by-step app instructions and the 925 versus 999 guide for an explanation of fineness.
Frequently asked questions
If a magnet does not stick, is it real silver?
Not necessarily. Many non-silver metals are also non-magnetic. This is a preliminary observation, not proof of silver content.
Does ice melting quickly prove 999 silver?
No. The observation is affected by testing conditions and cannot establish a precise alloy fineness or detect every plated construction.
Can XRF always detect a plated silver fake?
No single surface reading guarantees that the entire item is homogeneous. Ask a qualified laboratory about the limitations of its method for the specific item.
Where can a consumer request silver testing in India?
BIS describes testing at recognised assaying and hallmarking centres. Contact a current centre to confirm its available silver-testing procedures and fees.
Sources and verification
- PIB: India's revised silver-hallmark standard and HUID features.
- BIS: Official BIS Care app.
- BIS: Consumer testing and recognised centres.
- LBMA: Physical Market Guidelines and surface-analysis limitations.
Reviewed 8 October 2026. Home observations are not a substitute for a competent assay or verified hallmark.
