Introduction
Buying gold jewellery is both an emotional and financial decision. With so many designs and price points available online, one question matters more than ever:
Is the gold genuine?
That’s where BIS Hallmarking comes in. It’s the most reliable way to ensure the purity, authenticity, and value of gold jewellery in India.
This guide explains what BIS hallmarking means, why it matters, and how it protects you as a buyer.
What Is BIS Hallmarking?
BIS (Bureau of Indian Standards) Hallmarking is a government-regulated certification system that verifies the purity of gold jewellery.
Introduced to protect consumers, BIS hallmarking ensures that the gold you buy matches the purity claimed by the jeweller.
In India, hallmarking is mandatory for gold jewellery sold to consumers.
What Does a BIS Hallmark Include?
Every BIS-hallmarked gold jewellery piece carries three key identifiers:
1. BIS Logo
This confirms the jewellery is certified under BIS standards.
2. Purity Mark
Indicates the gold purity:
• 9K – 375
• 18K – 750
(These numbers represent gold content per 1000 parts.)
3. HUID (Hallmark Unique Identification Number)
A 6-digit alphanumeric code that makes every jewellery piece individually traceable.
You can verify this number on the BIS Care App.
Why BIS Hallmarking Is Important for Buyers
✔ Guaranteed Purity
You get exactly the gold purity you’re paying for — no less, no compromise.
✔ Transparency & Trust
Hallmarked jewellery is tested at authorised BIS-approved assay centres.
✔ Protection Against Overpricing
Prevents false purity claims that inflate jewellery prices.
✔ Easy Resale & Exchange
BIS-hallmarked jewellery is easier to resell or exchange in the future.
BIS Hallmarking for 9K & 18K Gold Jewellery
Many buyers assume hallmarking applies only to higher purities — but that’s a myth.
✔ 9K gold jewellery can be BIS hallmarked
✔ 18K gold jewellery is BIS hallmarked
At CAIA, every 9K and 18K gold jewellery piece is BIS hallmarked with HUID, ensuring authenticity across all price points.
How to Verify a BIS Hallmark
You can verify your jewellery in seconds:
- Download the BIS Care App
- Enter the HUID number
- View:
o Purity
o Jeweller details
o Certification status
This adds an extra layer of confidence to your purchase.
Common Myths About BIS Hallmarking
❌ “Hallmarking makes jewellery expensive”
False. Hallmarking ensures purity — it doesn’t inflate gold value.
❌ “Only traditional jewellery is hallmarked”
False. Modern, lightweight jewellery is also BIS certified.
❌ “Online jewellery isn’t trustworthy”
False — if it’s BIS hallmarked, it’s just as reliable.
Why CAIA Follows BIS Hallmarking Strictly
At CAIA, transparency isn’t optional — it’s foundational.
✔ BIS-hallmarked 9K & 18K gold
✔ HUID-enabled traceability
✔ Purity-verified before dispatch
✔ Fully insured delivery
We believe trust is the true luxury.
Buy Gold Jewellery with Confidence
When you choose BIS-hallmarked jewellery, you’re choosing honesty, safety, and long-term value.
With CAIA, you don’t just wear gold — you wear confidence.
Explore BIS-Hallmarked Jewellery at CAIA
Discover lightweight everyday jewellery and refined fine gold — all certified, all authentic.
