What is on a hallmarked article
A compliant piece carries three marks: the BIS logo, the purity grade (for example 22K916), and a six-digit alphanumeric HUID — the Hallmark Unique Identification code assigned to that specific article at the assaying and hallmarking centre.
The HUID is unique. Two articles cannot share one, which is what makes it traceable back to the registered jeweller and the centre that tested it.
How a buyer verifies it
Download the BIS CARE app, enter the HUID, and confirm that the article details returned match what is in front of you — purity, item type and the registered jeweller. Do this before payment.
If the app returns nothing, or details that do not match, do not complete the purchase. Report it to BIS and, if the seller is a Council member, raise it through the grievance channel.
What jewellers must do
Registered jewellers must hold a valid BIS registration, send articles for assaying and hallmarking before sale, retain records, and print HUID details on the invoice. Ordinary shop stock, exhibition stock and repaired pieces all fall within scope where the article is sold as hallmarked.
What hallmarking does not cover
It certifies purity of the gold only. It does not certify stone quality, weight fairness, design value or the reasonableness of the making charge. Those remain matters for the invoice and, where necessary, redressal.