The Hallmark Revolution: How BIS Hallmarking Changed Indian Jewellery Forever

For most of independent India's history, the purity of gold jewellery was a matter of faith. Faith in the jeweller. Faith in the family relationship. Today, faith has been replaced by a five-digit code stamped into the metal — and the Indian jewellery industry has been transformed in the process.

What Is BIS Hallmarking?

BIS hallmarking is a quality certification administered by the Bureau of Indian Standards, guaranteeing the purity of gold jewellery at the carat declared by the seller. A BIS-hallmarked piece carries four marks: the BIS logo, the purity grade (22K, 18K, 14K, etc.), the assaying centre identification, and a six-digit alphanumeric Hallmark Unique ID (HUID). Every hallmarked piece of gold jewellery now has a unique digital identity.

The Hallmarking Timeline

• 2000: Voluntary hallmarking introduced for gold jewellery
• June 2021: Mandatory hallmarking introduced in 256 districts across India
• June 2022 onwards: Hallmarking expanded progressively across all districts
• July 2025: Hallmarking made mandatory for 9-carat gold jewellery, extending coverage to virtually all gold sold in India

What Hallmarking Has Changed

Consumer trust. The single largest cultural shift in Indian jewellery in the last decade. The question 'is this gold pure?' is now answered by metallurgy, not relationship.

Organised retail acceleration. Organised retailers, with the operational infrastructure to comply at scale, achieve 95%+ hallmarking compliance.

Price transparency. Once purity is verifiable, pricing becomes a function of making charges, wastage, and gold rate — all of which can now be transparently disclosed.

Resale and buyback. Hallmarked jewellery commands a higher resale price because purity is verifiable.

Export quality signals. BIS hallmarking has supported India's jewellery export story by providing a recognised quality signal that international buyers can verify.

The Push-back

• Small jeweller compliance burden: hallmarking infrastructure and compliance costs are real for family jewellers in small towns.
• Antique and heritage jewellery: pre-existing pieces often cannot be hallmarked without melting and reworking.
• Custom craftsmanship: highly custom Polki and Jadau work faces operational friction with batch-based hallmarking processes.

What Hallmarking Doesn't Cover (Yet)

Hallmarking is gold-specific. Silver, platinum, gemstones, diamonds, and lab-grown stones are covered by separate certification frameworks.

The IIJA Frame

The IIJA Honours include the Responsible Sourcing & Traceability Award — recognising the broader transparency movement of which hallmarking is the most successful example.

Frequently Asked Questions

What is BIS hallmarking? BIS hallmarking is a quality certification administered by the Bureau of Indian Standards that guarantees the purity of gold jewellery at the carat declared by the seller. It is now mandatory for nearly all gold jewellery sold in India.

What is HUID in jewellery? HUID stands for Hallmark Unique ID — a six-digit alphanumeric code stamped on every hallmarked piece of gold jewellery, allowing it to be traced back to its origin. HUID became mandatory in 2021.

Is hallmarking mandatory for all gold jewellery in India? Yes, as of July 2025, hallmarking is mandatory for all gold jewellery from 9-carat upward, with limited exemptions for very small retailers and pre-existing antique pieces.

Does hallmarking apply to silver and platinum? Mandatory BIS hallmarking currently applies only to gold jewellery. Voluntary schemes exist for silver, and platinum has a separate certification framework.