Hidden method to distinguish gold authenticity, “Density” check! | JEWEL CAFÉ Malaysia

Date Updated: April 6, 2023

Hidden method to distinguish gold authenticity, “Density” check! | JEWEL CAFÉ Malaysia


I heard there is hidden method to distinguish gold authenticity.


That's true. We do have "Density" check.


What is the specific value of gold density?


Answer is 19.32 g/cm3.

Gold has always been referred to as a “Special Metal” and is still traded at high prices today. Unfortunately, the gold trading market is filled with “counterfeit products.” It will have the appearance of a “gold ingot” on the outside if the surface of the other metals has gold plating applied to it. It is necessary to rely on the pertinent details offered by the “density of gold” when determining the authenticity of gold. What does the density of gold mean? More specifically, what is the cost? We’ll go over the pertinent details you should be aware of one at a time in the sections below if you’re “thinking about buying gold” or “want to confirm whether the gold you have is real gold or fake gold.”

“Density” is an important point when checking metal

There are many types of metals and each metal comes with unique characteristics.

Example, weight, conductivity, hardness, etc., these characteristics will be quite different in different types of metals.

Many metals “look exactly the same,” but if you carefully examine their properties, you can tell “what kind of metal characteristics the metal in your hand matches with.” And one of these “metal properties” is “density.” The mass of a substance at 1 cm3 is referred to as its density. Even though some metals are prepared in the same quantity, when held in the hand, some metals are incredibly heavy and others are remarkably light. It’s because not all metals have the same density. Since density is a property of the metal itself, if it is the same metal, its value will never change. If the density is measured separately even for metal with the same appearance, the difference between the two items can be identify immediately.

What is the specific value of gold density?

The value of density has great significant in gold trading. When someone brings gold to the recycle store, the method of judging the authenticity through density measurement may improve the accuracy.

So, what is the specific density of gold?

Answer is 19.32 g/cm3.

If for some reason it is impossible to tell the type of metal, you can determine whether it is gold by calculating the density of the substance and check whether it meets 19.32 g/cm3.

By the way, the density of other metals is as follows:

・Silver = 10.50 g/cm3

・Platinum = 21.45 g/cm3

・Iron = 7.874 g/cm3

You can try to measure the density of the metal you have to find out the closest value to what type, maybe you van guess the name of the metal!

When you don’t know the purity of gold, density is a convenient point

Apart from the so-called “pure gold”, gold also has alloys mixed in fixed proportions.

Numerous jewelery items bear the K18 and K14 labels. These “K” gold alloys were created to give the gold enough “hardness” for everyday use. alloy that is “hardness” based. However, because K gold is not as pure as pure gold, the purchase price is lower. The best jewelry is that which is clearly marked, but regrettably there are times when the label is not engraved from the start or when it gradually deteriorates with use. The engraving is only there for reference. The best way to determine the purity of gold is to measure its density. For instance:

K24(So-called pure gold), Density: 19.32 g/cm3;

K18 Mid Density 14.84 ~ 16.12 g/cm3

K14 Low Density 12.91 ~ 14.44 g/cm3 as the reference standard for judgement

Mixing different metals will also make the density difference, therefore the density value if K gold will be a range. Please use it as a “reference standard” for the density of K gold.

Own method of measuring gold density

If you want to determine the type of metal, you can first try to calculate the density of substance by yourself. With a small technique you can measure the density of metal at home.


Scale, fishing line, plastic cup or bowl, water


1. Put the metal you want to measure directly on the scale.

2. Write down the number displayed (No. A).

3. Put water in the cup (bowl) and put it on the scale. Reset the weighing scale to zero.

4. Tie the metal with the fishing line and put the metal into the water.

5. Write down the number displayed (No. B).

6. Divide the No. A by the No. B to confirm the calculated value.

The point at this time is to find the no. B (volume).

The weight of metal in the water cannot be easily obtained by the average person using household tools. The value can occasionally change for trivial causes. Please use your own measurement as a “reference standard” to determine which metals are present. It is best to let the experts at the jewelry recycling store make the determination of the metal type. The recycling center can carefully evaluate for customers and has a full range of equipment to measure density or specific density.


I find out more interesting facts in here.


Yes that's true, you can also get more information about other luxury item facts in here


Oh okay! Thank you so much.


You're welcome

For expensive purchase of Gold items,
leave it to Jewel Cafe!

Jewel Cafe ranks
No 1 in customer service satisfaction

  • Shockingly high prices thanks to our international and domestic distribution network!
  • Largest business in the industry with over 250 outlets!
  • Free jewelry cleaning service that has been enjoyed by many!
  • No cancellation fee regardless of mode of purchase!
This article has also been read!

Find a JEWEL CAFÉ store near you

We have female staff with a vast amount of product knowledge and a speedy assessment process that takes as little as 10 minutes from the time you come to the store to payment! If you are interested in a quick assessment and consultation, we recommend visiting our store!