1. Jewelry Identifier
  2. Assay offices
  3. BIS Hallmarking — India

* Assay office

BIS Hallmarking — India: hallmarks, history, and town mark

Indian national hallmarking system. Voluntary 2000-2021; mandatory for gold since June 2021 with the introduction of HUID (Hallmark Unique Identification) traceability codes. Each piece carries a 6-digit alphanumeric HUID.

Published May 30, 2026

Quick facts

Operator
Bureau of Indian Standards
Location
New Delhi, India
Founded
2000
Status
Active
Town mark
BIS logo + fineness + jeweler ID + HUID code (6 alphanumeric)

About the BIS Hallmarking — India

Indian national hallmarking system. Voluntary 2000-2021; mandatory for gold since June 2021 with the introduction of HUID (Hallmark Unique Identification) traceability codes. Each piece carries a 6-digit alphanumeric HUID.

The town mark

The BIS Hallmarking — India strikes a distinctive symbol — BIS logo + fineness + jeweler ID + HUID code (6 alphanumeric). This town mark identifies where a piece was assayed, so spotting it on a ring, chain, or piece of silverware tells you which office tested and guaranteed its metal content.

Visit / official record

Official site: https://www.bis.gov.in/

Sources

* Frequently asked

FAQ

Q. Where is the BIS Hallmarking — India?
A. It is based in New Delhi, India. It is run by Bureau of Indian Standards.
Q. Is the BIS Hallmarking — India still operating?
A. Yes. The BIS Hallmarking — India, founded in 2000, is still assaying and hallmarking precious metal today.
Q. What hallmark symbol does the BIS Hallmarking — India use?
A. Its town mark is bis logo + fineness + jeweler id + huid code (6 alphanumeric). That symbol identifies the office where a piece was tested for purity, so you can use it to trace where the item was assayed.

* Try it

Identify the jewelry in your hand, right now.

Just take a photo — AI reads the metal, gemstone, hallmark, era, and an estimated value range in seconds. First two scans free, no account required.

Download on the App Store

* Related

Keep exploring