Hallmarks 585 and 750 on gold jewelry and diamond recognition
There are few hallmarks displayed, the 585 and 750 hallmarks and short explanation on how to recognize the cubic zirconia instead of a diamond.
- The hallmark 750 on jewelry
This is hallmark 750 on jewelry that designates 18 karat gold or 75% of gold in the alloy of metal. - Hallmark 585 designating 58.5% of gold in the alloy
The hallmark 585 designates 58.5% of gold in alloy or 14 karat gold. In reality this gold may be little less or more, and that depends of the country of origin of the jewelry. In some countries such as in Balkan areas, or former Yugoslavia, the local gold refineries were cheating people so much and were issuing gold that was even less than 14 karat designating it falsely as 14 karat gold. - Hallmark 750 designating 75% of gold in the alloy
The hallmark 750 on jewelry designated 75% of the gold in the alloy of metal. Such gold is also known as 18 karat gold. The percentage is easily obtained by dividing 18 karats by 24 karats with the result being 0.75 which represents the 75% of the gold in alloy. - Real diamond mounted on gold jewelry
One may see very sharp edge of the girdle of this real diamond mounted on gold jewelry. When diamond is fake and is replaced for example with cubic zirconia, the girdle edge cannot be that sharp and is replaced with a tiny surface or wall. By doing exact inspection of the sharpness of the girdle one may quickly recognize cubic zirconia or that diamond is not a diamond. That shall not be the final test though!…
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