Skip to main content
Knowledge Centre

Articles & Knowledge Centre

In-depth articles on hallmarking, precious metal testing, BIS regulations, bullion markets, and consumer education — written by our team and curated from trusted industry sources.

51 articles found

How to Read and Understand Your BIS Hallmark Certificate
Consumer GuidesOriginal

How to Read and Understand Your BIS Hallmark Certificate

A step-by-step guide to understanding the three components of the BIS hallmark, the HUID verification process, and what each element of the hallmark certificate tells you about your jewellery.

15 February 2026 · 4 min read

BIS hallmarkHUIDcertificateconsumer educationverificationhallmark reading
Read article
The Role of Assayers: Training, Certification, and Career Path
Testing & TechnologyOriginal

The Role of Assayers: Training, Certification, and Career Path

What assayers do in a hallmarking laboratory, the qualifications required, how BIS certification works, and the career opportunities in India's growing precious metals testing industry.

20 December 2025 · 4 min read

assayercareerBIS certificationmetallurgytraininghallmarking career
Read article
India's Gold Import and Refining Industry: An Overview
Bullion MarketsOriginal

India's Gold Import and Refining Industry: An Overview

A data-driven look at India's gold imports, domestic refining capacity, LBMA accreditation challenges, and the hallmarking infrastructure that supports the supply chain.

20 November 2025 · 2 min read

gold importgold refiningIndiaLBMAbullionsupply chain
Read article
Hallmarking and GST: Tax Implications for Jewellers
Hallmarking & BIS UpdatesOriginal

Hallmarking and GST: Tax Implications for Jewellers

A clear guide to GST on hallmarking charges, input tax credit for jewellers, invoicing requirements, and how to handle hallmarking costs in your GST returns.

15 October 2025 · 4 min read

GSThallmarking chargesinput tax creditinvoicingjeweller compliance
Read article
Digital Gold vs Physical Gold: What Investors Should Know
Bullion MarketsOriginal

Digital Gold vs Physical Gold: What Investors Should Know

A balanced comparison of digital and physical gold investment — covering purity, liquidity, regulation, storage, risks, and the role of hallmarking in physical gold.

5 October 2025 · 3 min read

digital goldphysical goldinvestmentgold ETFsovereign gold bond
Read article
Silver Purity Grades Explained: 800, 925, 950, and 999
Consumer GuidesOriginal

Silver Purity Grades Explained: 800, 925, 950, and 999

A deep dive into silver fineness grades — what each number means, where each grade is used, how to identify them, and how hallmarking works for different silver purities.

15 July 2025 · 4 min read

silver puritysterling silver925999finenesssilver hallmarking
Read article
BIS Hallmarking Requirements for Export Jewellery
Hallmarking & BIS UpdatesOriginal

BIS Hallmarking Requirements for Export Jewellery

What jewellery exporters need to know about BIS hallmarking exemptions, international standards recognition, and the documentation required for exporting gold and silver articles from India.

20 June 2025 · 4 min read

export jewelleryBIS exemptioninternational standardsDGFThallmarking
Read article
How to Choose a Reliable BIS-Authorized Hallmarking Centre
Consumer GuidesOriginal

How to Choose a Reliable BIS-Authorized Hallmarking Centre

What jewellers and consumers should look for when selecting a hallmarking centre — from BIS authorization and accreditation to turnaround times, location, and track record.

5 May 2025 · 4 min read

hallmarking centreBIS authorizationIAGES accreditationjeweller guidequality
Read article
Common Myths About Gold Purity — Debunked
Consumer GuidesOriginal

Common Myths About Gold Purity — Debunked

Separating fact from fiction: 12 widespread myths about gold testing, hallmarking, HUID, and purity — each debunked with factual, authoritative explanations.

25 April 2025 · 4 min read

gold mythspurityconsumer educationHUIDhallmarking factsdebunked
Read article
The Importance of Fire Assay in Precious Metal Testing
Testing & TechnologyOriginal

The Importance of Fire Assay in Precious Metal Testing

Why fire assay remains the gold standard for purity analysis — its unmatched accuracy, the four-stage process, and how it complements XRF in modern hallmarking.

15 February 2025 · 3 min read

fire assaycupellationgold testingprecious metalsassaying
Read article
From Touchstone to XRF: How Gold Testing Methods Evolved in India
Testing & TechnologyOriginal

From Touchstone to XRF: How Gold Testing Methods Evolved in India

A history of gold purity testing in India — from the touchstone of the Indus Valley through acid testing, specific gravity, and the adoption of XRF spectrometry and fire assay in modern hallmarking.

5 January 2025 · 3 min read

touchstoneXRFfire assaygold testingIndus Valleyassaying history
Read article
The Growth of India's Assaying and Hallmarking Centre Network
Hallmarking & BIS UpdatesOriginal

The Growth of India's Assaying and Hallmarking Centre Network

From zero centres in 1999 to over 1,700 by 2026 — how India built the world's largest precious metal testing infrastructure, including the IS 15820 standard and offsite centres.

15 September 2024 · 3 min read

AHChallmarking centreIS 15820offsite centresBISinfrastructure
Read article
The HUID System: How a Six-Digit Code Transformed India's Gold Trade
Hallmarking & BIS UpdatesOriginal

The HUID System: How a Six-Digit Code Transformed India's Gold Trade

An in-depth look at the Hallmark Unique Identification system — its July 2021 launch, the technology behind it, the challenges faced, and how it created piece-level traceability for 58 crore articles.

1 May 2024 · 3 min read

HUIDtraceabilityBISBIS Care appdigital hallmarkingverification
Read article
India's First Decade of Voluntary Hallmarking: 2000–2010
Hallmarking & BIS UpdatesOriginal

India's First Decade of Voluntary Hallmarking: 2000–2010

How India's hallmarking infrastructure grew from scratch to over 230 centres in its first decade — including the introduction of silver hallmarking and the first AHC competence standard.

10 May 2023 · 3 min read

voluntary hallmarkingAHCsilver hallmarkingIS 15820BIS
Read article

Looking for a specific term?

Our glossary covers hallmarking, assaying, bullion, and purity terminology used across the Indian precious metals industry.

Explore the glossary
Chat with us