Gold jewellery is more than just an accessory—it’s a symbol of beauty, tradition, and lasting value. Whether you’re buying a wedding necklace, a pair of earrings, a ring, or a mangalsutra, one of the most important things to check is its purity. Understanding gold purity helps you make informed decisions and ensures you’re investing in genuine, high-quality jewellery.
In this guide, we’ll explain everything you need to know about checking the purity of gold jewellery, including gold karats, hallmarking, simple testing methods, and tips for buying authentic gold.

Why Gold Purity Matters
Gold purity tells you how much pure gold is present in a piece of jewellery. Pure gold is naturally soft, so it is mixed with other metals like silver, copper, or zinc to make it stronger and more suitable for everyday wear.
Knowing the purity of your jewellery helps you:
- Buy genuine gold jewellery
- Understand the value of your purchase
- Compare different jewellery options
- Avoid counterfeit products
- Ensure better resale value
- Shop with confidence
When you know what to look for, you can choose jewellery that matches both your style and your budget.
Understanding Gold Purity
Gold purity is measured in karats (K). The higher the karat, the higher the percentage of pure gold.
24K Gold
- 99.9% pure gold
- Bright yellow color
- Very soft
- Mainly used for coins and investment purposes
22K Gold
- 91.6% pure gold
- Mixed with small amounts of other metals
- Ideal for traditional gold jewellery
- Popular choice for necklaces, bangles, earrings, and bridal jewellery
18K Gold
- 75% pure gold
- Strong and durable
- Suitable for modern and designer jewellery
- Commonly used with diamonds and gemstones
14K Gold
- 58.5% pure gold
- Highly durable
- Often used for daily wear jewellery
For most traditional jewellery in India, 22K gold remains the preferred choice because it offers an excellent balance between purity and durability.
What Is a Hallmark?
A hallmark is an official certification that confirms the purity of gold jewellery. It is one of the easiest and most reliable ways to verify whether your jewellery meets recognized quality standards.
Hallmarked jewellery gives buyers confidence that they are purchasing genuine gold with the stated purity.
What to Look for on Hallmarked Jewellery
When checking a piece of jewellery, carefully inspect it for hallmark markings. These are usually engraved on the inside of rings or bangles or on the clasp or back of necklaces and earrings.
A hallmark generally includes:
- Purity mark
- Hallmark logo
- Identification mark
- Jeweller’s identification
These markings indicate that the jewellery has been tested and certified according to quality standards.
Common Gold Purity Marks
You may find markings such as:
- 999 – Nearly pure gold
- 916 – 22K gold
- 750 – 18K gold
- 585 – 14K gold
These numbers represent the percentage of pure gold in the jewellery.
For example:
916 means 91.6% pure gold, which is equivalent to 22K gold.
Visual Inspection Tips
Before purchasing gold jewellery, take a close look at the piece.
Check for:
- Smooth finishing
- Consistent color
- Even polish
- Clear hallmark
- Quality craftsmanship
Avoid jewellery that has rough edges, uneven color, missing hallmark markings, or poor finishing.
Ask for a Purity Certificate
A trusted jeweller should provide a purchase invoice and any applicable certification.
The invoice should clearly mention:
- Gold purity
- Weight
- Making charges
- Applicable taxes
- Total price
Keep your invoice in a safe place. It is useful for insurance, resale, or future exchanges.
Compare the Weight
Gold is a dense metal, so genuine gold jewellery often feels heavier than imitation jewellery of the same size.
While weight alone cannot confirm purity, unusually light jewellery may be worth examining more carefully.
Magnet Test
Gold is not magnetic.
If a strong magnet attracts your jewellery, it may contain a large amount of other metals.
However, this test is only a basic indicator and should not be used as the only method to determine authenticity.
Ceramic Plate Test
Some people gently rub gold on an unglazed ceramic surface.
- A golden streak may suggest genuine gold.
- A black streak may indicate another metal.
This method should be used with caution because it can scratch the jewellery.
Nitric Acid Test
Professional jewellers sometimes use nitric acid to test gold.
Pure gold does not react with nitric acid, while many other metals do.
Because this involves chemicals and can damage jewellery, it should only be performed by trained professionals.
Electronic Gold Testers
Many jewellery stores use electronic gold testing devices.
These machines quickly estimate the purity of gold without causing damage to the jewellery.
Electronic testing is fast, convenient, and widely used by professional jewellers.
X-Ray Fluorescence (XRF) Testing
One of the most advanced methods of checking gold purity is XRF testing.
Benefits include:
- Non-destructive
- Highly accurate
- Fast results
- No damage to jewellery
Many modern jewellery stores use XRF machines to verify gold purity.
Signs of Fake Gold Jewellery
Be cautious if you notice any of the following:
- No hallmark
- Unusually low price
- Color fading
- Uneven plating
- Strong magnetic attraction
- Poor finishing
- Seller unwilling to answer questions
If something seems too good to be true, it is worth taking extra time to verify the jewellery before buying.
Tips for Buying Genuine Gold Jewellery
To make a confident purchase:
- Buy from a trusted jewellery store.
- Check for hallmark markings.
- Ask for a detailed invoice.
- Verify the gold purity.
- Compare designs and pricing.
- Understand making charges before purchasing.
- Inspect the jewellery carefully.
- Keep all purchase documents.
These simple steps can help protect your investment.
Caring for Your Gold Jewellery
Maintaining your jewellery helps preserve its beauty for years.
Here are some care tips:
- Store jewellery separately in soft pouches.
- Clean it gently with warm water and mild soap.
- Dry it with a soft cloth.
- Avoid harsh chemicals and perfumes.
- Remove jewellery before swimming or heavy physical work.
- Have valuable pieces professionally cleaned when needed.
Proper care keeps your jewellery looking elegant and reduces wear over time.
Why Trust Gold Stone Jewellery?
At Gold Stone Jewellery, we understand that buying gold is an important decision. That’s why we focus on quality, craftsmanship, and customer satisfaction.
When you shop with us, you can expect:
- Carefully crafted gold jewellery
- Elegant bridal collections
- Beautiful rings, necklaces, earrings, bangles, anklets, and mangalsutras
- Friendly customer service
- Transparent pricing
- A welcoming shopping experience
Whether you’re celebrating a wedding, anniversary, birthday, or another special occasion, our team is here to help you find jewellery you’ll treasure for years.
Frequently Asked Questions
Is 24K gold better than 22K gold?
24K gold is purer but softer. For most jewellery, 22K gold offers a better balance of purity and durability.
What does “916” mean?
The number 916 indicates that the jewellery contains 91.6% pure gold, which is commonly known as 22K gold.
Can fake gold have a hallmark?
Counterfeit markings can exist, so it’s important to buy from reputable jewellers and request proper documentation.
Does gold change color?
Pure gold does not tarnish easily. However, alloys or surface finishes may show changes over time depending on wear and exposure.
Is a magnet test enough?
No. A magnet test is only a basic check. Professional testing and hallmark verification provide more reliable confirmation of gold purity.
Final Thoughts
Buying gold jewellery is an investment in beauty, tradition, and lasting value. Understanding how to check gold purity helps you make informed decisions and shop with confidence.
Look for hallmark markings, understand karat values, ask for a proper invoice, and purchase from a trusted jeweller. Taking these simple steps can help ensure that every piece you buy is genuine and of high quality.
If you’re searching for elegant gold jewellery, beautiful bridal collections, or timeless designs for everyday wear, visit Gold Stone Jewellery near Trends, Channarayapatna. Our team is committed to helping you find jewellery that combines quality, craftsmanship, and style, making every special occasion even more memorable.