How is Gold Jewellery Tested for Purity Before Buying or Selling?

Two gold chains can look identical, yet one's worth double the other. That's because purity hides on the inside, and no amount of shine will tell you the truth. This gap is where people lose money, paying too much when buying or getting too little when selling. So before any deal, you need to know what you're holding.

Understanding how gold jewellery purity is tested before selling isn't complicated at all, and it saves you from getting fooled. Here's every way it's checked.

What Does Gold Purity Mean?

Pure gold is 24 carat. But nobody wears 24-carat jewellery every day because it's so soft it bends like butter. So jewellers mix it with metals like copper or silver to toughen it up. The karat number simply tells you how much real gold is inside. So "22 carat" isn't a brand or grade. It's simply the amount of pure gold in the mix.

24K – 999 – 99.9% gold
22K – 916 – 91.6% gold, used in most Indian jewellery
18K – 750 – 75% gold, common in stone-studded pieces
14K – 585 – 58.3% gold

Easy way to remember it: the bigger the number, the more gold you're paying for.

The BIS Hallmark: India's Stamp of Trust

In India, the safest proof that your gold is genuine is the BIS hallmark. Since 2021 it's compulsory for registered jewellers, so most newer jewellery already has it. Look on the inside of a ring, the clasp of a chain, or the back of a pendant, and you'll usually spot three tiny marks:

The BIS logo (a little triangle) – proof it's certified
The purity mark, like 22K916, tells you the karat
The HUID – a 6-digit code unique to that one piece

Download the free BIS Care app, type in that HUID code, and it shows you the real purity, the jeweller's name, and where it was hallmarked. Anyone can fake a stamp, but faking a government database entry? Not happening. That's why this beats every other check.

Learn About Common Gold-Testing Methods at Home

You don't need a lab to catch an obvious fake, and honestly, most of us have tried at least one of these at home. A few quick checks can raise a red flag before you trust or sell a piece:

Magnet test: Gold isn't magnetic. If a strong magnet grabs it, there's other metal inside.
Water test: Real gold is heavy and sinks straight down. If it floats, it's fake.
Ceramic test: Rub the gold on an unglazed tile. A gold streak is good; a black or grey streak isn't.
Vinegar test: Put a drop of white vinegar on it. Real gold stays the same, and fake turns dark or green.
Skin test: If your skin turns green or black after wearing it, the metal mix is on the higher side.

Just remember, these are rough checks. A well-made plated fake can still slip past them, so don't bet big money on a home test alone.

Professional Testing: For True Accuracy

When there's real money riding on it, buying, selling, insurance, or a gold loan, this is where the proper tools come in:

Acid test: A tiny scratch plus a drop of nitric acid. The reaction shows the karat. Quick, but it leaves a small mark. This is basically the old kasauti stone trick jewellers have used for generations.
XRF machine: Shoots a harmless X-ray and reads the exact gold percentage in seconds. No scratches, no damage. This is the one most trusted buyers use today.
Karat meter: A small electronic device that checks the karat fast. Handy and portable.
Ultrasonic test: Uses sound waves to catch hollow or filled fakes.
Fire assay: The most accurate of all, but it melts a bit of the gold, so it's mostly for bars and coins.

For everyday jewellery, XRF is the sweet spot, accurate, and it doesn't touch your gold.

Why Purity Matters When You Sell or Take a Loan

Purity decides your resale price, your loan amount, and what your gold is truly worth. Banks and buyers pay the top rate only for certified, hallmarked gold. A verified 22K chain will always beat an unmarked one of the same weight. Even a small gap in purity can quietly cost you thousands, so that two-minute check pays for itself.

Sell Gold in Chandigarh at Jewel House Chandigarh

Want to sell gold in Chandigarh without the stress? Jewel House is the No. 1 gold buyer in Chandigarh, and they've been in this business for over 30 years. You get cash for gold in Chandigarh at the highest market rate, and the payment lands in your hand in about 10 minutes.

What makes them worth a visit:

They test your gold right in front of you, done by expert 24K certifiers
The testing is non-destructive, so if you change your mind, you take your gold back as it is
They also help release your pledged gold from banks and pawn brokers
Instant payment by cash, cheque, DD, IMPS, NEFT, or RTGS, your choice

The process is simple: carry your original bill or KYC documents, get a clear valuation, agree on the price, and walk out with cash. They buy old, scrap, broken, and used gold, plus coins, bars, silver, and diamonds. You'll find them at S.C.O-7, Sector 19-D, Chandigarh, or just call Mr Deepinder Singh at 98151 50400 for honest advice.

Conclusion

So that's the full picture. Check the BIS hallmark and HUID first, run a couple of home tests if you're curious, and get an XRF check done for anything valuable. Do that, and nobody can fool you when you buy or sell. And if you're selling in Chandigarh, a trusted, transparent name like Jewel House makes the whole thing quick and fair.

FAQs

1. How is gold purity tested at home?
Ans: Use the magnet, water, vinegar, or ceramic test. They spot fakes fast but won't give exact purity. For that, get a hallmark or XRF check.

2. What does 916 mean on gold?
Ans: 916 means 22K gold, which is 91.6% pure. It's the most common gold used for Indian jewellery.

3. Is the XRF test safe for my jewellery?
Ans: Yes. XRF uses a harmless X-ray and doesn't scratch or melt anything. Your gold comes back exactly as it was.

4. Where can I sell gold in Chandigarh?
Ans: Jewel House in Sector 19-D is the No. 1 gold buyer in Chandigarh, with instant cash and transparent testing. Call 98151 50400.