
Is It Gold or Not? How To Tell If Your Jewelry Is Valuable Or Fake?
And if you inherit your grandmother's jewelry, how do you tell sterling silver plated jewelry from genuine gold? And what about other old jewelry you got from your family or the nice neckless you received, once upon a time, from your former boyfriend? Are they genuine gold or do they only have a sentimental value?

It happens that some jewelry pieces lose their shine and appear worthless, but don't always be fooled by appearances. All that glitters is not gold and vice versa. Here are some steps to follow in order to know if the jewel you have in your hands is made out of gold or not.
How Do You Know If It's Gold Or Not?
If the piece of jewelry is designed in Europe for example, the hallmarks appear as symbols and are often placed so that they are easily identifiable. The eagle's head means 18 karats, the shell, 14 karats, and the shamrock, 9 karats.
In Canada, the hallmark is more discreet, often hidden, and simply indicates the titration as follows: 10K, 14K, 18K, or 24K gold.
In Europe, the numbers 750 (18K), 585 (14K), and 417 (10K) are also used and represent the concentration of pure gold in the alloy based on the value 1000. If the jewel is gold plated, the punched number is followed by a "P" or a "GF" (gold-filled). Obviously, there are also counterfeit pieces, but with rare exceptions, hallmarked jewelry is genuine.
The more karats the gold has, the more pure gold the alloy contains, therefore the higher the price of the jewelry.
24-carat gold - 999 ‰
18-carat gold - 750 ‰ (750 ‰ means 750 parts of pure gold from 1000 parts of alloy)
14-carat gold - 585 ‰ (585 ‰ means 585 parts of pure gold out of 1000 parts of alloy)
9-carat gold - 375 ‰ (375 ‰ means 375 parts of pure gold out of 1000 parts of alloy)
* ‰ = "mine"
Example:
- 14 gold parts and 10 alloy parts create 14 kt (karat) gold
- 18 gold parts and 6 alloy parts create 18 kt (karat) gold
- 24 gold parts create 24 kt (karat) gold
The Purity Markings
999,999 (the purest gold ever produced. Refined by Perth Mint in 1958)
Other Common Markings
GP – means plated with gold. It almost always has the karat fineness of the plating listed, i.e. 18K GP.
HGE – means high-grade electroplate, which is another way of denoting that the jewelry you are looking at is not solid gold. These pieces also generally display the karat fineness of the gold.
GF – is the abbreviation for gold-filled, which is a term that means a thin layer of gold was bonded to a base metal to make this jewelry piece.
Hallmarks and Manufacturer Stamping
Nowadays, gold items sold in the United Kingdom are regularly hallmarked, the only exception being products that individually weigh under 1 gram. According to https://www.goldsmart.co.nz/, the U.K. products are stamped from one of four assay locations - London, Birmingham, Edinburgh, and Sheffield.
China and India have no required system, and hallmark stamping in both countries is entirely a voluntary act, so fakes are common. Amazingly, the same goes for super-civilized Switzerland when it comes to hallmark stamping which is entirely voluntary unless the gold is in the form of a metal watch case.
In Italy - the country of fashion and good taste - on the other hand, gold jewelry markings include a stamp for the given manufacturer’s name as well as a grade of quality. Common gold names include Arezzo and Valenza, for example.
Europe came together in 1972 and tried to standardize hallmarking via a convention agreement better known today as the "Vienna System". It has been renamed the "Common Control Mark" or "CCM", but the standards were originally spelled out by the Vienna Convention on the Control of the Fineness and the Hallmarking of Precious Metal Objects.















