Understanding IS 1417: The Indian Standard for Gold Purity and Hallmarking

IS 1417 is the foundational Indian Standard that governs gold and gold alloy jewellery and artefacts. Every hallmarked gold article in India is tested and certified against this standard. Understanding its evolution reveals how India's gold quality framework has matured over decades.

The Early Editions

The original IS 1417 was published well before hallmarking was introduced. It specified gold purity grades and testing requirements, initially serving as a reference standard for the jewellery trade. The third revision, IS 1417:1999, was the version under which India's voluntary hallmarking scheme launched in April 2000.

Under IS 1417:1999, hallmarking was available for six karat grades: 23K, 22K, 21K, 20K, 18K, and 14K. The hallmark included a year-of-marking code letter — "A" for 2000, "B" for 2001, and so on — that identified when the article was hallmarked.

IS 1417:2016 — The Fourth Revision

The most significant overhaul came with IS 1417:2016, the fourth revision, which took effect on 1 January 2017. Key changes included reducing the mandatory karat grades from six to three — 22K (916), 18K (750), and 14K (585) — and discontinuing the year-of-marking code letter.

This simplification was designed to reduce confusion for consumers and align the hallmark with international practices. The year code had become less relevant as digital record-keeping improved.

Amendment No. 1 (July 2021): HUID and New Karats

When mandatory hallmarking launched on 23 June 2021, Amendment No. 1 to IS 1417:2016 introduced several critical changes. The HUID (Hallmark Unique Identification) system was mandated, replacing the jeweller's identification mark with a unique six-digit alphanumeric code for each piece of jewellery.

Additionally, three more karat grades were added to the mandatory scope: 20K (833), 23K (958), and 24K (999). This expanded coverage to include pure gold bars and coins alongside jewellery.

Amendment No. 2 (July 2025): 9-Karat Gold

In July 2025, Amendment No. 2 brought 9-karat gold (375 fineness) under mandatory hallmarking. This grade is primarily used for lightweight fashion jewellery and certain export-oriented pieces.

Current Mandatory Grades

As of 2026, IS 1417 covers seven gold purity grades:

The Standard Behind Every Hallmark

Every BIS hallmark on a gold article in India is a certification that the article conforms to IS 1417. The standard specifies not just the purity grades but the testing methodology, the hallmark format, the permissible tolerances, and the documentation requirements. It is the technical document that gives legal meaning to the hallmark stamped on every piece of gold jewellery sold in India.