Time&Gold

Selling gold can be a lucrative endeavour, but it is important that you ensure that the gold you are trading is genuine. With gold counterfeiting on the rise, it\'s crucial to be able to tell real gold from fake. In this guide you will find practical tips and methods to help you recognise counterfeit gold and protect your transactions.

1. Understanding the purity and markings of gold

Purity of gold:

Carat system: the purity of gold is measured in carats, with 24 carats representing pure gold. Common purity grades are 10k (41.7% pure), 14k (58.3% pure), 18k (75% pure) and 22k (91.7% pure).

Hallmarks: Real gold items often have hallmarks indicating their purity, such as “10k\",” “14k\",” “18k” or “24k”

Markings to check:

Carat markings: Look for hallmarks such as “10k\",” “14k\",” etc.

Manufacturer’s mark: Reputable manufacturers often include their logo or initials.

Country of origin: Some items are stamped to indicate where they were made.

2. Physical tests

Visual inspection:

Colour: Genuine gold has a clear, rich colour. Counterfeit gold may appear too shiny or dull in colour.

Wear and cracks: Examine the edges and areas that are frequently touched. Genuine gold wears evenly, while counterfeit gold may reveal a different metal underneath.

Magnet test:

Procedure: Hold a magnet near the gold object. Real gold is not magnetic. If the object is attracted to the magnet, it is probably a fake.

Note: Some counterfeit gold items are made of non-magnetic metals, so this test is not foolproof.

Sealing test:

Procedure: Calculate the density of the item by dividing its weight by its volume. Real gold has a high density of about 19.32 grammes per cubic centimetre.

Tools needed: A balance and a water displacement vessel.

Scratch test:

Procedure: Scratch the gold object onto a piece of unglazed ceramic. Real gold leaves a golden stripe, while fake gold leaves a black or green stripe.

Caution! This test can damage the object.

3. Chemical tests

Nitric acid test:

Procedure: Put a drop of nitric acid on the gold item. Genuine gold does not react, while fake gold changes colour or dissolves.

Safety: Handle nitric acid with care, wear gloves and safety goggles.

Note: This test can damage the object and should be performed in a well-ventilated area or by a professional.

Gold test kits:

Contents: These kits usually contain acids for different gold purities and test stones.

Procedure: Rub the gold item on the touchstone, apply the acid and observe the reaction to determine the purity.

4. Professional estimation and electronic testing

Professional estimation:

Description: By taking your gold to a certified appraiser, you can get an accurate assessment of its authenticity and value.

Advantages: Appraisers use advanced tools and expertise to verify gold.

Electronic gold testers:

Function: These devices use electronic probes to measure the conductivity of the metal and determine its authenticity and purity.

Advantages: Non-destructive and with quick results.

5. Common warning signals

Too good to be true: If the price of the gold item seems unusually low, it could be counterfeit.

Unknown sellers: Be cautious when dealing with unknown sellers or sources without a verifiable reputation.

Lack of documentation: Genuine gold items often come with certificates of authenticity or receipts. The lack of documentation can be a warning sign.

6. Conclusion

Recognising fake gold requires a combination of visual inspection, physical and chemical testing. While some methods are simple and can be done at home, others may require professional equipment or expertise. By familiarising yourself with these techniques, you can protect yourself from counterfeit gold and ensure that the gold you are selling is genuine. Investing in a professional appraisal and reliable assaying equipment can further safeguard your transactions and maintain your credibility as a seller.