Updated October 2026. The familiar ‘925’ stamp says an article is represented as sterling silver, but a stamp on its own is not independent proof. India’s newer silver hallmarking approach allows HUID-based traceability for qualifying hallmarked silver jewellery. A buyer should distinguish the purity claim from an actual BIS hallmark.
What 925 means
An alloy marked 925 is represented as containing 925 parts of silver per 1,000, with other metals making up the remaining portion. This creates a useful balance of workability and strength in many jewellery designs. Silver-coloured stainless steel and nickel-based ‘German silver’ are not sterling silver simply because they look similar.
What changed for silver from September 2025
The Bureau of Indian Standards introduced an HUID-based silver hallmarking format from 1 September 2025 under IS 2112:2025. Government information explains that silver hallmarking continues on a voluntary basis, and the newer format uses a BIS standard mark with the word SILVER, a purity grade and an HUID code for hallmarked articles. This should not be confused with a rule that every silver-coloured accessory must carry a hallmark.
How the verification process works
- Look for a qualifying BIS silver hallmark rather than relying on the number ‘925’ alone.
- Identify the purity grade and unique HUID code if the article is sold as HUID-hallmarked silver.
- Use the official BIS Care application to check the code and compare the article type and purity recorded.
- Keep the invoice describing the item, including weights and any non-silver attachments.
- For a valuable or disputed piece, ask a recognized testing service about direct analysis rather than relying on a visual inspection.
Seven fineness grades, not one
Government guidance on the revised silver standard lists the grades 800, 835, 925, 958, 970, 990 and 999. They are different stated silver contents. A buyer must check what grade is being sold, and whether the product is a solid alloy, plated jewellery, or mixed-material assembly.
What if a mala has only tiny silver capping?
A Rudraksha or crystal mala may use small fittings, spacers or caps described as ‘925 silver.’ The owner should ask whether that description is backed by a seller’s material specification, an assay or a hallmark on an eligible article. A hallmark on an entirely different pendant does not automatically authenticate every fitting of a custom mala. Precious-metal verification and gemstone or Rudraksha testing should be considered separately.
Why after-sales documentation matters
For silver jewellery, material purity is only one consideration. Clasp strength, soldering, plating, skin exposure and whether the item can be repaired determine how usable it is. An invoice showing the parts supplied, metal mass and any non-silver materials is helpful if a repair or exchange is requested.
Related reading and official sources
The Government of India announcement describes the silver hallmarking changes. BIS has more general hallmarking information. Compare 925 silver, German silver and plating and Rudraksha capping materials.