750 gold is the same as 18 gold
You have probably seen the 750 mark engraved on your gold and jewelry, and you may have wondered what it means and what it refers to. The number 750 means the purity of the desired gold, which is 75% pure gold and 25% a mixture of other metals.
750 gold is an international symbol
The 750 gold symbol is one of the international symbols that calculates the alloy in terms of parts per thousand, it is equivalent to 750 carat 18 carat, which is used more than carats 1 to 24 in our own country of Iran. Below are the two international symbols of carat 750. You do.
750 gold date
The British Marking Registration Act in 1973 required all gold items above 1 gram to be marked 750 and all gold factories were required to take their manufactured gold to assay offices to have the purity of gold registered by a reliable institution. check.
In our country, all the grading offices or the so-called rigiri operate under the supervision of the gold and jewelry union of their city.
Standard signs of a gold
Workshop mark or the workshop license code
Mark of the grading office
Mark of the date of manufacture
Carat mark which indicated the purity of the gold
Why is the gold standard 750?
Since 999 gold is very soft and cannot be used to make beautiful gold, other metals such as silver, platinum, palladium are added to the gold so that the gold becomes malleable and they can use it to create the design and shape they want.
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