Hallmarked gold with HUID number in India 2026

Gold August 18, 2026 8 min read

Gold Hallmarking & HUID (2026) — How to Check If Your Gold Is Real & Pure

When you spend lakhs on gold, one question really matters: is it genuinely as pure as claimed? That’s exactly what hallmarking and the HUID number protect. Mandatory hallmarking means your gold’s purity is officially certified — if you know what to look for. This guide explains gold hallmarking and HUID in 2026, why they matter, how to check your gold’s purity, and how to avoid being cheated with fake or under-carat gold.

Quick Answer	Details
Hallmark	Official certification of gold purity (by BIS)
HUID	6-character Hallmark Unique ID stamped on each item
Mandatory	Hallmarking is mandatory for gold jewellery (per rules)
What to check	BIS mark, purity (916/750), HUID
Protects you	Against under-carat & fake gold
Always get	A proper bill stating purity & weight

What Is Gold Hallmarking?

Hallmarking is the official certification of a gold item’s purity, done by the Bureau of Indian Standards (BIS). A hallmarked piece has been tested and marked to confirm it contains the gold purity claimed. It exists to protect buyers from being sold gold that’s less pure than promised — a real and common problem before hallmarking became mandatory.

What Is the HUID Number?

The HUID (Hallmark Unique Identification) is a 6-character alphanumeric code stamped on each hallmarked gold item. Think of it as a unique ID for that specific piece — it links the item to its hallmarking record. Every genuinely hallmarked item should carry one.

What to Look For on Hallmarked Gold

A properly hallmarked gold item shows these marks:

Mark	What It Means
BIS logo	Certified by the Bureau of Indian Standards
Purity/fineness	e.g. 22K916 (91.6%), 18K750 (75%), 24K999 (99.9%)
HUID	The 6-character unique ID for the item

Not sure what 916 or 750 means? See our 22K vs 24K gold guide.

How to Check Your Gold’s Purity

Look for the BIS hallmark and HUID on the item (often near the clasp/inner side).
Check the purity stamp matches what you’re paying for (22K/916, etc.).
Verify the HUID where official tools allow, and cross-check with your bill.
Get a proper GST bill stating purity, weight and making charges.
Buy from reputable jewellers who hallmark all items.

Why This Protects Your Money

Without hallmarking, a buyer could pay for 22K and receive, say, 18K — losing money on every gram. Hallmarking + HUID makes purity verifiable and accountable. It matters even more when buying for investment — every bit of impurity is money lost. For pure investment, formats like SGBs and gold ETFs sidestep purity worries entirely.

Red Flags to Avoid

No hallmark/HUID on jewellery that should have it.
Reluctance to give a proper bill stating purity.
“Too good” prices — often under-carat gold.
Pressure to buy quickly without checking marks.
Very high, non-negotiable making charges hidden in the total.

Bottom Line

Never buy gold without checking the BIS hallmark, purity stamp and HUID, and always take a proper bill. These simple checks protect you from paying pure-gold prices for impure gold. Combine them with knowing the day’s gold rate and understanding 22K vs 24K, and you’ll buy gold with confidence. This is general information; verify current hallmarking rules and rates before buying.

Frequently Asked Questions

What is gold hallmarking and why is it important?▼

Gold hallmarking is the official certification of a gold item's purity, carried out by the Bureau of Indian Standards (BIS). A hallmarked item has been tested and marked to confirm it genuinely contains the gold purity claimed. It is important because it protects buyers from being sold gold that is less pure than promised - a common problem before hallmarking became mandatory. When you buy hallmarked gold, you can trust that its purity is officially certified and verifiable, which is especially valuable given how much money gold purchases involve.

What is the HUID number on gold?▼

The HUID, or Hallmark Unique Identification, is a 6-character alphanumeric code stamped on each hallmarked gold item. It acts as a unique identifier for that specific piece, linking it to its hallmarking record. Every genuinely hallmarked gold item should carry a HUID alongside the BIS logo and the purity mark. When buying, you should look for this HUID as part of verifying that the gold is properly hallmarked and matches the purity and details stated on your bill, giving you accountability and protection against under-carat or fake gold.

How do I check if my gold is real and pure?▼

Look for three marks on the item, often near the clasp or inner side: the BIS logo (certifying it), the purity or fineness mark (such as 916 for 22K, 750 for 18K, or 999 for 24K), and the 6-character HUID. Check that the purity stamp matches what you are paying for, cross-check the HUID with your bill, and always get a proper GST bill stating purity, weight and making charges. Buying from reputable jewellers who hallmark all their items is the safest approach. These simple checks protect you from paying pure-gold prices for impure gold.

Is hallmarking mandatory for gold in India?▼

Hallmarking has been made mandatory for gold jewellery in India under the applicable rules, meaning jewellers are required to sell hallmarked gold with the BIS mark and HUID for covered items. This was introduced specifically to protect consumers by ensuring the purity of gold sold is certified and verifiable. However, rules and their coverage can be updated over time, so it is wise to confirm the current requirements. As a buyer, you should insist on hallmarked gold with a HUID and a proper bill, and be cautious of any jewellery sold without these.

What are the warning signs of fake or impure gold?▼

Key red flags include jewellery with no hallmark or HUID where it should have them, a jeweller's reluctance to provide a proper bill stating purity, prices that seem too good to be true (often a sign of under-carat gold), pressure to buy quickly without letting you check the marks, and very high, non-negotiable making charges hidden within the total price. If you notice any of these, be cautious. Always verify the BIS hallmark, purity stamp and HUID, take a proper bill, and buy from reputable jewellers to avoid paying for gold that is less pure than claimed.

Disclaimer: This article is for general information and educational purposes only, and is accurate to the best of our knowledge as of August 18, 2026. It is not professional, financial, legal or investment advice. Rules, rates and details change — please verify from official sources before acting. Read our full disclaimer.