Understanding real gold

Gold is a precious metal that has been used in jewellery for thousands of years. However, not all gold jewellery is created equal.

If you’re thinking of selling your pieces, and would like to know what it’s worth – it is best to get an expert to appraise the piece. However, here are some tests that you can do at home to distinguish if your jewellery is real gold or fake, gold-plated.

  1. Check for hallmarks: Real gold jewellery is usually stamped with a hallmark indicating its purity. These marks include:
    • 24K, 22K, 18K, 14K, 10K: These numbers represent the purity of gold, with 24K being the purest form.
    • AU, GF, GP, or EP: Indicates whether the piece is gold-filled, gold-plated, or electroplated.
    Always look for these stamps on the inside of rings, clasps of necklaces and bracelets, or the back of earrings.
  2. Perform the magnet test: Gold is not magnetic. One way to test your jewellery is to hold a strong magnet close to it. If the piece is attracted to the magnet, it likely contains other metals and is not pure gold.
  3. Use the ceramic scratch test: Gently rub the gold piece on an unglazed ceramic plate. Real gold will leave a golden streak, while fake gold or gold-plated items may leave a black mark.
  4. Try the nitric acid test: If you’re comfortable using chemicals, the nitric acid test can help determine the authenticity of gold. Apply a small drop of nitric acid to the jewellery; if it reacts and turns green, it’s not real gold. Real gold will not react with nitric acid.
  5. Weigh the piece: Gold is denser than most metals, so real gold jewellery should feel heavier than fake pieces of the same size. You can compare the weight of your jewellery with similar-sized items that you know are genuine gold.

How to identify real diamonds

Diamonds are among the most valuable and sought-after gemstones on the market, but distinguishing them from imitations can be challenging. Here are some ways to identify a real diamond:

  • Check the clarity: Real diamonds have natural imperfections known as inclusions. At DollarDealers, we use a jeweller’s loupe to examine the stone. If we see tiny flaws or inclusions, it’s likely a real diamond. A completely flawless stone could be a fake, as most diamonds have some level of imperfection.
  • Perform the water test: Diamonds are dense, so they should sink when placed in a glass of water. If the stone floats, it’s likely a fake or an imitation like cubic zirconia.
  • Test for refractivity: Diamonds have a high refractive index, meaning they sparkle intensely when light passes through them. Hold the diamond under a light source and observe the way it reflects light. Real diamonds will display a sharp sparkle, with the light splitting into different colours. Fakes often produce a duller, more blurred reflection.
  • Use the fog test: Breathe on the diamond to fog it up, much like you would a mirror. Real diamonds dissipate heat quickly, so the fog should clear almost immediately. If it lingers for more than a few seconds, the stone might be fake.
  • Check for UV fluorescence: Under UV light, most real diamonds emit a blue glow, although some may not fluoresce at all. If the stone glows another colour, such as green or yellow, it might be an imitation.
  • Use a diamond tester: A diamond tester is a small handheld device that can help determine the authenticity of a diamond. It measures the thermal conductivity of the stone, which is unique to diamonds. At DollarDealers, we can simply touch the probe to the stone, and the tester will indicate whether it’s a real diamond or an imitation.

Tips for buying real gold and diamonds

When buying gold and diamond jewellery, it’s crucial to buy from reputable sellers like DollarDealers. Here are a few tips to help make sure you’re making a wise investment:

  1. Buy from trusted sources: Always purchase your jewellery from a well-established and reputable retailer. A trusted seller like DollarDealers has the expertise and equipment to verify the authenticity of the gold and diamond pieces they sell.
  2. Request certification: For diamonds, you can ask for a certification from a recognised gemmological institute, such as the Gemological Institute of America (GIA) or the International Gemological Institute (IGI). These certificates provide detailed information about the diamond’s characteristics, including its carat, cut, colour, and clarity.
  3. Get a professional appraisal: Before making a significant purchase, consider getting the piece appraised by a professional. This will give you peace of mind by confirming the authenticity and value of the jewellery.
  4. Educate yourself: Familiarise yourself with the basics of gold and diamond jewellery before you shop. Knowing what to look for can help you avoid scams and make sure you’re getting the quality you’re paying for.

Get an expert appraisal for your jewellery

Identifying real gold and diamond jewellery can be challenging, with the right knowledge and tools needed to confidently verify the authenticity of your pieces. At DollarDealers, our jewellery experts are trained to use specialist equipment to accurately examine gold and diamond pieces, and will be more than happy to appraise your piece. Trusted by New Zealanders for over 25 years, you can also sell your gold to us with top prices paid, guaranteed.

Buy and selling real gold and diamond jewellery

If you want to buy or sell gold and diamond jewellery, DollarDealers offers a reliable, discreet, and trustworthy service, with an expert team of appraisers backed by years of experience in every store. Visit your local store today to explore our exquisite collection and receive expert guidance.

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FAQs about identifying real gold and diamond jewellery

How can I tell if a piece of jewellery is made of real gold?

There are several methods to determine the authenticity of gold. Two common methods are to look for hallmarks or do a magnet test. However it is recommended that you visit an expert gold appraiser who can use precise tools to test your piece’s authenticity.

What are the different gold purities, and how can I identify them?

Gold purity is measured in carats. 24-carat gold is pure gold, while 18-carat gold is 75% gold and 25% other metals. 14-carat gold is 58.3% gold and 41.7% other metals. You can often find the carat number stamped on your jewellery.

How can I distinguish a real diamond from a fake one?

Diamonds have unique properties that can help differentiate them from imitations. One common test is the ‘fog’ test. If the diamond fogs up when you breathe on it, it’s likely a fake. Diamonds also have a high refractive index, which means they sparkle very brightly.

Are there any at-home tests to determine the authenticity of a diamond?

YWhile there are some at-home tests, such as the fog test, they may not be completely reliable. For a definitive answer, it’s best to consult with a professional jeweller or gemmologist.

What should I do if I suspect my gold or diamond jewellery is fake?

If you believe your jewellery may not be real, it’s advisable to have it independently appraised. Our expert team at DollarDealers will use specialised equipment to determine the authenticity of your gold or diamonds, and will provide you with an accurate estimate of value.

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