BIS Hallmark Gold
Every gold piece we sell is hallmarked by a BIS-recognised assaying centre and carries a unique six-character HUID you can verify yourself, on your phone, in about thirty seconds.
- Karats
- 14K and 18K
- Fineness
- 585 and 750
- Marked by
- BIS-recognised assaying centre
- Verify with
- BIS Care app
What a hallmark actually is
A hallmark is not our claim about our own gold. It is an independent assay: a sample is taken from the finished piece, tested by a centre recognised by the Bureau of Indian Standards, and marked only if it meets the purity stated. We do not do the testing and we cannot influence the result.
This matters most on the day you are not buying. Gold is exchanged and resold by purity, and an unhallmarked piece is worth whatever the buyer decides to believe. A hallmarked one is worth what it says.
The three marks
Since the HUID system came in, an Indian hallmark carries three marks and no more:
| Mark | What it means |
|---|---|
| BIS logo | The triangular Bureau of Indian Standards mark |
| Purity and fineness | 14K585 or 18K750 — parts of gold per thousand |
| HUID | A six-character alphanumeric code, unique to that one piece |
The HUID is the important one. It is not a batch number or a design code — no two pieces in India share it. It is assigned at the assaying centre and stays with that piece for its life.
Where to find it
The marks are laser-applied and small — they are meant to be read with a loupe, not with the naked eye.
- Rings — inside the band
- Chains and necklaces — on the clasp or on a small tag beside it
- Earrings — on the post or the back of the setting
- Bangles and bracelets — inside the shank, or on the clasp tag
On very fine pieces the hallmark may sit on an attached tag rather than the piece itself, where marking the metal directly would risk distorting it.
Checking it yourself
- Install the free BIS Care app, published by the Bureau of Indian Standards.
- Choose “Verify HUID”.
- Type the six characters from your piece.
The app returns the jeweller who registered it, the assaying centre that tested it, the purity, and the item description. All four should match what you bought and what is on your invoice.
If the app returns nothing, or returns details that do not match your piece, contact us before doing anything else — and do not accept an explanation from anyone that a genuine hallmark can fail to appear. Verification is the point of the system. We will replace or refund any piece that does not verify.
What we use
We work in 14K (585) and 18K (750), in yellow, white and rose. 22K and 24K are too soft to hold a diamond securely and we do not use them for set pieces.
The colour comes from the alloy, not from plating. Rose gold gets its colour from copper, white gold from palladium and silver. The one exception is the finish on white gold, which is rhodium-plated for brightness — that is a surface, and it wears. See Warranty & Care for replating.
Hallmarking and the price you pay
The hallmarking charge is included in the price shown. There is no separate line at checkout for it, and there is no version of a piece we sell that is cheaper because it skipped the assay.
Last updated 21 August 2026.