Recently, although the price of gold has fluctuated in a small arc, it is still at a high level!
As a result, it is not uncommon for some unscrupulous merchants to sell fake gold or gold of insufficient purity to consumers!
So we also need to keep our eyes open when buying gold or gold jewelry!
And learn some tips to identify the authenticity and purity of gold, so that it can effectively help us avoid a lot of pitfalls!
After all, the price of gold is so high, and the money spent on buying gold is not a small amount! If you are cheated, don't be too wronged!
Today, I will share with you 6 tricks to quickly identify the authenticity and purity of gold jewelry at home!
It's all full of dry goods, and it is recommended to collect it and use it full of comparisons!!
First, look at the steel seal
First of all, we have to learn to read the stamp!
In regular gold shops, gold or gold jewelry will have a steel stamp or stamp.
In addition to the common gold jewelry steel impression "pure gold", there are also "G990", "AU990", "gold 999", "AU999", "pure gold 9999" and so on.
In short, we remember that the steel seal must be the expression of material and purity, if there is only a mark like 999, then be careful!
Of course, if you have a seal, it doesn't have to be real gold, but if you don't even have a steel seal or it's not standard, you must not start easily!!
In addition to the above, we also need to know that some steel seals that are very similar to gold seals, they are not actually gold, or not quite!
Like the stamps are KP and GP's are gilded; KF, GF, KGF are gold-filled; GF and KGF are wrought gold!
Don't buy these jewellery as gold, these are either handicrafts with very low gold content or no gold at all!
There are also 18K gold represented by AU750, G750, and G18K, which is gold with a gold content of 75%, which is used by many big brands!
Second, look at the color
There is a good correlation between the color of gold and the purity of gold!
The gold we see is usually golden yellow, and the real gold is yellow and bright! In other words, we can judge the authenticity and purity of gold by looking at its color!
As the saying goes: "Seven green, eight yellow, nine five red, yellow and white with red and half gold" is to describe the authenticity and purity of gold!
This is also an old jargon handed down from the old bank or pawnshop!
To put it simply, the purity is not high if the color is green and white, the purity is high if the color is red and yellow, and the higher the purity of gold, the more yellow and bright!
3. Listen to the sound
Real gold and gold content above pure gold!
We throw it on the hard concrete floor, and the real gold makes a muffled sound, and it has no or little elasticity!
On the other hand, fake gold or gold with low gold content is due to the abundance of other metallic elements.
The sound is brittle and no dullness, and it generally makes a "dangdang" sound, and the sound has an aftersound, and it beats violently after landing!
However, like finished jewelry, it is still prudent to use this method, especially if the process is complex, it is easy to break!
Fourth, test soft and hard
We all know that gold is soft and very malleable!
Therefore, the higher the gold content, when bent by hand, it is easy to bend continuously; It is easy to straighten it with a pull, and there will be marks when you scratch it with something harder.
Here we should pay attention to things like hard gold, 3D hard gold/5D gold/5G gold, etc., and you can't try special craft gold like this!
On the contrary, fake gold or gold with low gold content is difficult to deform by hand, and it is very brittle and easy to break!
Fifth, weigh the weight
In addition to the above four methods, we can also test the weight of gold directly by hand, but this requires some experience!
We can try the feel of real gold more to distinguish it!
The principle is simple, gold has a density of 19.3 g/cm³, silver has a density of 10.5 g/cm³, and copper has a density of 8.9 g/cm³.
There is a huge difference between the three, so the weight of gold jewelry of the same volume is greater than that of silver and copper products, and the difference in feel is also obvious!
And precious metals that are denser and higher quality than gold are almost not readily available on the market, and they are not necessarily cheaper than gold!
And the texture and color are far from gold, so we don't have to worry!
6. Burn with fire
As the saying goes, "real gold is not afraid of fire, fire refines real gold"!
We can fully believe that many gold shops today use this method to identify gold!
Gold has high temperature resistance and corrosion resistance, even if gold is placed at a high temperature of 1000 °C, it can maintain the "three nos"!
That is, it does not melt, does not oxidize, and does not change color!!
Note that gold will begin to melt at 1063°C, but will not change color.
Therefore, real gold jewelry is burned red with fire, do not melt and deform the jewelry, and can be durable and not discolored.
Fake gold, on the other hand, is not fire-resistant, turns black-brown when burned, and loses its brilliance.
Generally, the lower the fineness, the stronger the color, and all of them turn black, indicating that it is fake gold jewelry!
All right! Mastering these 6 tricks, we can easily identify the authenticity of gold at home!
Even when we go to the gold shop, we can give it a try, and if there is indeed a problem with the gold, we can see a hint of it!
So I recommend you collect it and watch it slowly!
It is necessary to use real gold to observe and practice repeatedly to get more accurate results!
What else do you want to see?!
Or what jewelry brand do you want to know? What jewelry knowledge do you want to see? Or what kind of style recommendations and reviews?!
You can leave a message in the comment area to tell me!!