Depending on your preferences and purpose of use, you can choose the type of gold that suits your needs. Each type of gold will have different characteristics, quality and price.

Popular types of gold  on the market today include:

- Ta gold/9999 gold.

- 999 Gold/24K Gold.

- White gold/White gold 10K, 14K, 18K.

- Rose gold/Rose gold 10K, 14K, 18K.

- Western Gold/Gold 8K, 9K, 10K, 14K, 18K.

- Italian Gold/Italian Gold 750, 925.

- Young gold.

- Fine gold.

Types of gold on the market today

Currently, the situation of  fake gold and  poor quality gold  is increasing, causing confusion for buyers. Therefore, to avoid buying fake gold and losing money unjustly, you should know how to distinguish real gold from fake gold accurately and quickly.

2. Summary of 13 ways to identify real gold and distinguish fake gold

2.1 Identify by observing under light

The fastest and simplest way to distinguish real gold from fake gold is to observe them under light.

If it is  real gold  , you will see a smooth surface, no tiny dots, no protrusions.

On the contrary, if it is  fake gold, small white or red spots will appear on the surface  .

Real gold will have a smooth surface when viewed under light

2.2 Identify by symbols on gold jewelry

For real gold jewelry  , on the surface of the product are always engraved symbols indicating  the age and  brand  of gold such as 10K, 24K, 18K, PNJ, SCJ, 9999,...

Meanwhile, if it is  fake gold , you will not find these symbols.

Real gold will have symbols on the surface

2.3 Identify by biting hard on the gold

Real gold  will be soft and easily show tooth marks when bitten hard. Fake gold will be hard and will not be scratched or dented.

Bite hard to check whether the gold is real or fake

2.4 Identify by observing the tarnish of gold

If it is  fake gold , after a period of use, the plating layer above will disappear, revealing  other colored metal materials  under the gold layer. 100% real gold will not have this phenomenon.

Fake gold will tarnish after a period of use

2.5 Identify by makeup foundation

Apply a layer of liquid foundation on the back of your hand and wait for it to dry, then rub your hand on the golden surface.

If you see  a streak left  on the newly applied cream, it's  real gold ; if you don't see anything, it's fake gold.

Use foundation to identify real gold and fake gold

2.6 Identification with vinegar

Prepare a cup of vinegar, then soak the jewelry for about  15 - 30 minutes  and observe the color of the water in the cup.

If the vinegar turns  black, green  or  smoky brown  , it is  fake gold ; if there is no change in color, it is real gold.

Real gold will not cause the vinegar to change color when soaked

2.7 Identification by magnet

Use a magnet to bring it close to the gold to check. If attraction occurs   , it is  fake gold , but real gold will not react to the magnet  .

Real gold will not react to magnets

2.8 Identification by unglazed ceramic

Take the gold and rub it vigorously on the surface of the glazed ceramic (which is now white). If  yellow streaks appear  , it is  real gold , and  black streaks  are  fake gold .

Use unglazed ceramic to identify real gold

2.9 Identify by checking gold weight

First, you need to weigh the weight of the gold you want to test.

Next, prepare a bottle of water graduated in milliliters (ml), fill it halfway with water and let the gold soak.

Note the water level  before and after  adding gold to calculate the additional water volume.

Soak the gold in a measuring cup of water

Finally, apply the density calculation formula below:

If the added density is nearly  19g/ml  , it is real gold.

For example, gold has a weight of 38 g, the measured increase in volume is 2 ml, the density will be 38/2 = 19 g/ml. So that jewelry is  real gold.

2.10 Identification by aqua regia

Aqua regia  is a very corrosive compound and reacts with real gold. Use a towel or cotton ball to soak it in aqua regia, then dab it on the gold and observe the reaction on the surface.

Real gold  will  corrode  when exposed to solution, but fake gold will not have any problems.

Real gold will be corroded by aqua regia

2.11 Identification by nitric acid solution

Soak the jewelry in nitric acid solution (HNO3) or use a towel or cotton ball to blot the gold surface. If there is no phenomenon, it is real gold, but  fake gold  will create  water and salt  when meeting this acid solution.

Real gold will not react with nitric acid

2.12 Identification by torch fire

Cut a small piece of gold or make a cut on the surface of the gold, then use a flame to thoroughly burn the cut position.

If the gold melts and leaves  a layer  on the outside of the cut, it is  fake gold . Real gold also melts when exposed to high heat but will not leave anything behind.

Use a torch to identify real gold

2.13 Identification using an electronic gold tester

If you regularly shop and store gold, don't hesitate to invest in an electronic gold tester to ensure higher accuracy. You can read the instructions for use when buying the device or ask the seller for advice on how to read the results!

Gold tester gives highly accurate results

Summary

You can refer to quality gold age measuring machines at South America Laser !!

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