How to Check Gold Purity in Dubai: Hallmarks, XRF Tests and Home Checks

Quick answer: The most reliable purity test in Dubai is an XRF test at a jeweller or gold lab, which reads purity in seconds without damaging the piece. Before that, check the purity stamp, such as 916 for 22K, and make sure it matches your invoice.

GoldRateUAE explains how to check gold purity in Dubai at every level, from reading the stamp at the counter to a lab test before you sell. Purity matters because the price per gram depends on it: the live table above shows how much less 18K is worth than 24K.

Dubai has strict rules. Every gold item sold in the emirate must carry a purity mark, and testing and hallmarking are overseen by the Dubai Central Laboratory of Dubai Municipality.

What Do Purity Stamps Mean?

The stamp gives the gold content in parts per thousand. Match it to the karat on your invoice.

Stamp	Karat	Pure gold
999 or 999.9	24K	99.9% or more
916	22K	91.6%
875	21K	87.5%
750	18K	75%
585	14K	58.5%

A stamp is your first check, not proof on its own. Stamps can be faked on fake gold, so for a large purchase or a sale, combine the stamp with a test.

Method 1: Check the Shop and the Invoice

Buying from an established shop is the simplest protection. Licensed jewellers in the Gold Souk, Meena Bazaar and the malls issue an itemised invoice showing the weight, karat, making charge and VAT.

Keep that invoice. It is the document a buyer, a customs officer or a future exchange counter will ask for, and it records the purity the shop promised.

Method 2: An XRF Test at a Jeweller or Lab

X Ray Fluorescence, or XRF, is the standard test in Dubai’s gold trade. A machine reads the surface of the metal and reports the share of gold, silver, copper and other metals within seconds.

XRF does not damage the piece, which is why jewellers use it when they buy old gold. Small labs around the Gold Souk offer XRF tests to the public for a small fee, which is worth paying before you sell or exchange a valuable piece.

XRF reads the surface, so a thick plating over a different core can fool it. For high value bars or suspicious pieces, a jeweller may also drill a tiny sample or use other tests.

Method 3: Fire Assay for Bars and Large Lots

Fire assay is the most accurate method: a small sample is melted and the gold separated and weighed. It destroys the sample, so it is used for bars, scrap and large trades rather than finished jewellery.

Refiners and assay labs in Dubai’s bullion trade use it. As an individual buyer, you are more likely to rely on the refiner’s certificate that comes with a bar.

Method 4: Checks You Can Do at Home

Home checks can catch obvious fakes, but none of them replaces a proper test. Use them as a first screen only.

Home check	How it works	Limits
Magnet	Real gold is not magnetic	Many fake metals are not magnetic either
Density (water displacement)	24K gold is about 19.32 g/cm³ and 22K about 17.7 to 17.8	Tungsten has almost the same density; small items give unreliable readings
Skin or discolouration	Fake gold may stain the skin green or black	Real low karat gold can also tarnish
Ceramic scratch	Real gold leaves a gold streak on unglazed ceramic	It scratches the piece; avoid on jewellery you value

Avoid home acid tests. The acids are dangerous to handle, and a wrong reading can damage the piece.

How Purity Changes What Your Gold Is Worth

Purity sets the value per gram. A buyer pays for pure gold content, so 10 grams of 18K contains 7.5 grams of pure gold, while 10 grams of 22K contains about 9.17 grams.

That is why a mismatch between the stamp and the real purity is costly. If you paid for 22K and the piece is 21K, you lose about 4.5% of the gold value straight away.

Compare the live prices on our 22K gold rate in UAE and 24K gold rate in UAE pages to see the gap.

Checking Purity Before You Sell Gold in Dubai

When you sell, the buyer will test your gold, usually with XRF, and offer a price based on the pure gold content. Watch the test, ask to see the reading, and get the weight, purity and rate in writing.

If the reading is lower than your invoice says, ask a second shop or lab to test it. Our guide on how to sell gold in Dubai covers deductions and getting the best price.

Red Flags When Buying Gold

1. A price far below the live rate for the stated karat.

2. No stamp, or a stamp that does not match the invoice.

3. A shop that refuses an itemised invoice or a test.

4. Unusual colour or weight for the size of the piece.

5. Pressure to buy quickly, especially from street sellers.

The UAE gold hallmarks guide shows the official marks, and gross weight vs net weight explains why stones change the gold weight.

Frequently Asked Questions

What is the best way to test gold in Dubai?

Check the purity stamp, buy from a licensed shop with an itemised invoice, and use an XRF test at a jeweller or gold lab for certainty. XRF is fast and does not damage the piece.

Is the gold sold in Dubai real?

Gold sold by licensed shops in Dubai is required to carry a purity mark, and the trade is regulated by Dubai Municipality’s Dubai Central Laboratory. Buying from established shops with an invoice is the best protection.

Can I test gold purity at home?

Home checks such as the magnet and density tests can catch obvious fakes, but they cannot confirm the exact karat. Use an XRF test for a reliable result.

What does 916 mean on gold?

916 means 91.6% pure gold, which is 22 karat. It is the standard stamp for South Asian gold jewellery.

How to Check Gold Purity in Dubai the Right Way

To check gold purity in Dubai, start with the stamp and invoice, use an XRF test for anything valuable, and treat home checks as a rough screen. Doing this before you buy or sell protects the value of every gram.

This page gives general information only and is not financial advice.

Sources: Dubai Central Laboratory, Dubai Municipality, Goldify on gold density testing and INVI on verifying gold purity in the UAE.