Whether you’ve inherited jewellery, found an old gold chain, or are planning to sell unwanted jewellery, one of the first questions you may ask is:
“How can I tell if my gold is real?”
While some tests can be performed at home, professional testing remains the most accurate method. Here’s how to identify genuine gold.
1. Check for Hallmarks
Most genuine gold jewellery is stamped with markings such as:
- 375 (9K)
- 585 (14K)
- 750 (18K)
- 916 (22K)
- 999 (24K)
These indicate the purity of the gold.
2. Use a Magnet
Gold is not magnetic.
If your jewellery sticks strongly to a magnet, it probably contains other metals.
However, this test isn’t conclusive because some fake jewellery also isn’t magnetic.
3. Perform the Ceramic Test
Rub the jewellery lightly on an unglazed ceramic tile.
A black streak often indicates fake gold.
A gold-coloured streak usually indicates genuine gold.
4. Look for Discolouration
Real gold doesn’t tarnish.
If the jewellery is fading or revealing another metal underneath, it may be gold-plated rather than solid gold.
5. Check the Weight
Gold is a dense metal.
If a large piece feels unusually light, it may not be solid gold.
6. The Float Test
Gold is heavy and should sink immediately in water.
This test isn’t definitive but can provide another clue.
7. Acid Testing
Professional jewellers use specialised acids to determine purity accurately.
8. Electronic Gold Testing
Modern jewellery stores use electronic testing equipment that quickly identifies gold purity without damaging the jewellery.
When Should You Visit a Professional?
Home tests provide clues, but only a professional valuation can accurately determine:
- Gold purity
- Weight
- Current value
At Your Diamonds, we provide transparent gold testing and valuations so you know exactly what your jewellery is worth.