How to Tell Real Gold from Fake

Wondering if that gold ring, chain or bangle you’ve got is the real deal? With gold prices at a premium, it’s no surprise that imitations are common. But don’t worry — you don’t need specialist equipment to spot some telltale signs. In this simple UK guide, we’ll show you how to tell if your gold is real using a few practical checks you can do at home. By the end, you’ll know the common indicators of genuine gold — and what to avoid. Let’s get started!

1. Check for UK Hallmarks

In the UK, most legitimate gold jewellery will carry a hallmark — a small stamp that confirms purity and origin. Look for marks such as “375” (9ct), “585” (14ct), “750” (18ct), or “999” (24ct). These are usually found inside rings, on necklace clasps, or on the backs of pendants. Beware of extra letters like “GP” (gold-plated), “GF” (gold-filled), or “HGE” (heavy gold electroplate) — these mean it’s not solid gold. Keep in mind that fake pieces can still carry forged hallmarks, so this should be just one of several checks you do.

2. Examine Colour and Weight

Real gold has a rich, consistent colour and doesn’t tarnish, rust, or flake. If you notice fading, brassy tones, or green spots where the colour has worn off — it’s probably not real. Also, gold is a dense metal, so genuine pieces often feel heavier than you'd expect for their size. Compare it with a similar item that you know is real — if it feels suspiciously light, it might be fake or plated.

3. Use a Magnet

Gold is not magnetic. Grab a strong fridge magnet and hold it close to your item. If it jumps or sticks to the magnet, it’s definitely not real gold. However, if it doesn’t react, that’s a good sign — though not a guarantee. Some fakes use non-magnetic metals too (like brass or copper), so use this test alongside others for better accuracy.

4. Try the Float Test

Real gold sinks fast. Fill a glass with water and gently drop your item in. If it floats or lingers, it’s probably fake or hollow. If it drops quickly to the bottom and stays there, that’s a good sign — but again, not foolproof. Lightweight or hollow real gold can behave similarly to fakes, so combine this with other checks for better accuracy.

5. Ceramic Scratch Test (Use With Caution)

Rub the item lightly on unglazed ceramic (like the back of a tile). Real gold leaves a yellow streak; fake gold usually leaves black or grey. But be warned — this can scratch or damage your jewellery, so avoid it on valuable or sentimental pieces unless you’re willing to take the risk.

6. Should You Try the Bite Test?

No. Although real gold is soft and might dent slightly when bitten, this isn’t a reliable test. Many counterfeits are made with soft metals like lead, which also dent. Plus, you risk damaging your teeth. Leave this test in the movies where it belongs!

Common Myths (And Why They’re Wrong)

• “If it’s stamped, it must be real” — Fake items can still carry false stamps. Always test further.
• “No green skin = real gold” — While discolouration is a red flag, some cheap jewellery doesn’t cause skin reactions, and some real gold alloys might under certain conditions.
• “It’s not magnetic, so it’s real” — Many non-gold metals aren’t magnetic either. This is a good initial test, but not a final verdict.
• “Gold is always yellow” — Not true. White gold, rose gold, and even green gold exist. Focus on consistent colour, not just shade.

Still Unsure? Get it Checked by a Pro

If you’re not 100% certain after these tests, take your item to a trusted jeweller or gold buyer for a professional appraisal. Many UK jewellers offer acid testing or XRF scanning, which gives a more precise reading of gold purity.

Once you have a good idea your gold is genuine, check its value using our UK Gold Calculator. Just enter the weight and carat to get an estimate based on live market prices — a useful step before visiting any gold buyer or selling your item.

Conclusion

Spotting real gold doesn’t require fancy gear — just a bit of observation and common sense. By checking hallmarks, weight, reaction to magnets, and using other simple tests, you can confidently assess whether your gold is likely to be genuine. And when in doubt, ask an expert. Knowing what to look for can save you from disappointment and help you make smarter decisions when buying or selling gold in the UK.