Blog · October 10, 2026
Wondering how to tell if gold is real before having your jewellery professionally evaluated? Start by examining its hallmarks, purity markings, and overall appearance. These details may help you distinguish solid gold jewellery from gold-plated pieces and other gold-coloured metals. However, no common at-home test or visual inspection can conclusively establish a jewellery item's authenticity or exact gold content.
This matters when you own an old ring, an inherited necklace, or a bracelet you may eventually want to sell in Montreal. Gold jewellery can look authentic even when it contains only a thin outer layer of gold. At the same time, a genuine gold piece may have no visible hallmark.
Understanding these differences can help you make more informed decisions without risking damage to your jewellery.
Gold jewellery is not always made from pure gold.
Most gold jewellery is produced using alloys, which combine gold with other metals. These combinations can affect the jewellery's colour, hardness, and suitability for everyday wear. For example, 18-karat gold contains 75% pure gold by mass. The remaining 25% consists of other metals.
Gold-plated jewellery is different. Instead of containing a gold alloy throughout the piece, it has a layer of gold applied over another material. Both types can look remarkably similar.
That is why colour and shine alone are not reliable ways to determine whether jewellery is made from genuine gold. A useful first step is to examine the markings on the piece.
Hallmarks and purity markings can provide valuable information about the declared composition of a jewellery item. They are often expressed in karats or parts per thousand.
The location of a hallmark depends on the type of jewellery.
On rings, markings are often found on the inside of the band. Necklaces and bracelets may have markings near their clasps or on small connecting tags. Earrings may have markings on their posts or other parts of the setting.
Because these inscriptions can be extremely small, a magnifying glass and good lighting may help you read them. A worn or missing hallmark, however, does not automatically mean the jewellery is fake.
In Canada, precious metal quality markings are not mandatory on every item. When such markings are used, they must comply with applicable requirements and accurately represent the item's quality.
Gold purity is commonly expressed using a 24-karat scale.
| Marking | Approximate gold content |
|---|---|
| 9K / 375 | 37.5% |
| 10K / 417 | 41.7% |
| 14K / 585 | 58.3% |
| 18K / 750 | 75% |
| 21K / 875 | 87.5% |
| 22K / 916 | 91.7% |
| 24K / 999 | Very high-purity gold |
These are commonly encountered jewellery markings. Official Canadian quality-marking conventions may use .416 for 10K and .583 for 14K. For example, a ring marked 750 is represented as containing 750 parts gold per 1,000 parts of metal.
Although this is a useful indicator, a hallmark alone cannot guarantee authenticity. Markings can be inaccurate, and the actual metal composition may not match the inscription.
Understanding how jewellery is made can help explain why two pieces with nearly identical appearances may contain very different amounts of gold.
In jewellery, the term solid gold generally refers to an item made from a gold alloy throughout its metal structure rather than a base metal covered with gold.
A 14K solid gold ring, for example, has a nominal gold content of approximately 58.3%. It is not pure gold, but its gold content is distributed throughout the alloy.
Gold-plated jewellery consists of a base material covered with a layer of gold. This allows it to have a gold appearance without containing the same amount of gold as a solid gold item.
Markings such as G.E.P. or Gold Plated may indicate this type of construction. The Competition Bureau of Canada distinguishes between several categories of gold-covered products, including gold-plated, gold-filled, and rolled-gold plate items.
Gold-filled jewellery uses a mechanically bonded layer of gold over another metal. It is not equivalent to jewellery made entirely from a gold alloy.
Vermeil is another distinct category. It consists of silver covered with gold. Under Canadian quality-marking requirements, vermeil must have a silver base of at least .925 quality and gold plating of at least 10K quality.
Recognizing these terms can help you better understand jewellery descriptions and markings.
Gold colour can provide clues, but it is not a dependable authentication method.
No. Gold jewellery is available in several colours, including yellow, white, and rose gold. These variations are influenced by the metals used in the alloy.
A white gold ring can contain genuine gold even though it does not have the traditional yellow appearance. Similarly, a gold-coloured piece may contain little or no gold.
Gold-plated jewellery can show signs of wear when its outer gold layer becomes thinner or is worn away. This may reveal a different colour underneath, particularly around areas exposed to frequent friction.
However, discolouration does not automatically mean an item is fake. Surface deposits, cosmetics, repairs, and the characteristics of the alloy can also affect how jewellery looks. Visual changes should therefore be treated as clues rather than definitive evidence.
Several popular methods claim to identify real gold without professional equipment. Although some are based on genuine physical properties, their results are often easy to misinterpret.
Pure gold is not ferromagnetic, meaning it is not strongly attracted to an ordinary magnet. However, many non-gold metals are also not strongly magnetic.
Therefore, jewellery that does not respond to a magnet is not necessarily made from gold. Some jewellery components, such as clasps or internal mechanisms, may also contain metals different from the main body. Magnetic behaviour alone cannot establish authenticity.
Gold has a relatively high density compared with many commonly used metals. However, jewellery weight depends on its size, shape, construction, and the presence of other materials.
A hollow gold bracelet may feel lighter than expected, while a large piece made from another metal may feel heavy. Weight alone cannot determine the gold content of a jewellery item.
Some online guides recommend scratching jewellery, rubbing it against hard surfaces, or applying household chemicals.
These approaches can damage finishes, wear away plating, scratch metal, or affect gemstones and decorative elements. They may also produce misleading results.
For jewellery you want to preserve, non-destructive visual inspection is a safer starting point.
Yes. A missing hallmark does not automatically mean a piece is counterfeit or contains no gold.
A marking may have worn away, become difficult to read, or been affected by a repair. Some jewellery may never have carried a visible quality mark. Canadian precious metal marking rules do not require every item to carry a quality mark.
This is particularly relevant when examining older jewellery, inherited pieces, or items purchased in other countries. If you cannot identify a marking, professional verification may help clarify the item's composition.
At-home observations can help you identify possible signs of genuine gold, but they have significant limitations.
Professional verification may be useful when a hallmark is missing, the markings are unclear, a piece has been repaired, or you want to understand its gold content before considering a sale. It may also help when you are unsure whether an item is solid gold, gold-filled, or gold-plated.
For Montreal residents, On Achète Or provides information about its jewellery evaluation process, including purity verification and weighing. You can learn more on the company's How It Works page.
You do not need to rely solely on a home test before seeking information about a professional evaluation.
If you are considering selling gold jewellery, understanding its composition can help you interpret an evaluation more confidently.
Gold purity matters because different karat levels contain different proportions of gold. A 10K ring and an 18K ring of equal metal weight do not contain the same amount of pure gold.
However, identifying the purity is not the same as determining the final resale value. Other considerations include the weight of the relevant metal and the terms of the purchase offer.
For more information, see our article How Much Is a Gram of Gold Worth in 2026?, which explains how gold purity relates to metal value.
Check the inside of the band for markings such as 10K, 14K, 18K, or 750. These can indicate the declared gold purity, but they do not conclusively prove authenticity. Professional verification is useful when certainty is important.
The appearance of gold jewellery can change because of surface deposits, wear, or the properties of the metals in its alloy. Discolouration alone does not prove that a piece is fake.
A 750 stamp normally represents 18K gold, corresponding to 75% gold by mass. However, the marking alone does not guarantee that the item actually contains that proportion.
Pure gold is not strongly attracted to an ordinary magnet. However, the absence of magnetic attraction does not prove an item is made from gold.
Yes. Genuine gold jewellery may have no visible hallmark. The absence of a stamp does not establish whether the piece contains gold, so professional verification may be helpful.
The best starting point is to examine the jewellery's hallmarks, purity markings, and overall condition. These details may help you identify signs of genuine gold and distinguish different types of jewellery construction.
However, visual inspection and common home tests cannot reliably establish exact gold purity. Avoid methods that could damage your jewellery, especially if the piece has sentimental or potential resale value.
If you are in Montreal and want to better understand the composition of your jewellery before a possible sale, visit On Achète Or's contact page for further information.
Free, transparent evaluation done in front of you at today's rate. Immediate payment.
On Achète Or