Gold isn’t just a metal. It’s an investment, a fashion statement, and for many of us, something deeply emotional — like a family heirloom or a wedding gift. But how can you be sure that the gold you’re buying (or already own) is actually pure?
Whether you’re buying jewellery or holding onto something passed down through generations, knowing how to identify real gold can save you from costly mistakes. The good news? You don’t need to be a jeweller to spot the signs.
Here’s a simple, down-to-earth guide to help you identify pure gold — no lab coat required.
1. Don’t just buy gold—check the hallmark and buy with confidence
The easiest and most trustworthy way to know if gold is real? Check the hallmark.
Most genuine gold pieces are stamped with a tiny marking that tells you how pure the gold is. For example:
- 24K means 99.9% pure gold — that’s as pure as it gets.
- 22K means 91.6% gold (very common in jewellery).
- 18K is 75% gold.
Anything lower means more alloy and less gold.
You’ll usually find these marks on the inner side of rings, clasps on necklaces, or even the backside of coins.
👉 Tip: Make sure the hallmark includes a certification stamp, like BIS (in India) or a jeweller’s official mark.
2. Try the Magnet Trick
Here’s a quick test you can do at home: grab a strong magnet (even a fridge magnet can work, though a neodymium magnet is better).
Real gold won’t react to a magnet. If it sticks, there’s probably something else mixed in.
⚠️ Keep in mind: Some fake gold uses non-magnetic metals, so this isn’t a 100% guarantee. But it’s a handy first check.
3. Notice the Colour and Wear
Real gold has a rich, deep yellow colour that doesn’t fade over time. If you see any:
Fading or discolouration, especially where the piece rubs against skin or clothes
Green or black marks
Or if the gold seems too shiny or “off” in colour
…then it might not be pure gold.
Also, real gold is soft — so over time, it may develop small dents or scratches, especially if it’s 22K or 24K.
4. Drop It in Water (The Float Test)
Here’s another easy one: fill a glass with water and gently drop your gold item in.
✅ Real gold sinks right to the bottom because it’s naturally heavy.
❌ Fake or low-quality gold may float or hover in the middle.
Just make sure there are no air bubbles caught in chains or small crevices, as they could mess with the result.
5. The Acid Test (If You’re Feeling Brave)
You can buy a gold testing acid kit online or at some jewellery stores. It works by applying a small drop of acid to your gold item and watching how it reacts.
No reaction? Likely real gold.
Green or cloudy reaction? Not real or very low-quality gold.
⚠️ A quick warning: Acid tests can damage your jewellery if you’re not careful. If it’s something valuable, maybe leave this one to the pros.
6. When in Doubt, Ask a Pro
If you’re still unsure, the safest route is to take your gold to a trusted jeweller or certified appraiser. They have special tools, like electronic testers and X-ray machines, that can give you accurate results without damaging your piece.
Think of it like going to a doctor for a second opinion. You’ll sleep better knowing the truth.
Final Thoughts
Gold is a beautiful thing — it holds its value, it looks stunning, and often, it carries stories. But in a market full of lookalikes and knockoffs, it’s smart to know what you’re holding.
Use these simple tests at home to check your gold, but when in doubt, always get a second opinion from someone who knows the trade.
After all, when it comes to gold, purity isn’t just about metal — it’s about peace of mind.