The logo of Saturday Fortune Pure Gold has the word MJY.

The jewelry mark of Saturday Fortune includes the manufacturer code, the name and content of precious metal materials, and the appearance only needs to be inspected for specific workmanship quality such as the overall shape and processing quality of the jewelry.

Thousand Pure Gold: A gold content with a gold content of not less than 999 is called Thousand Pure Gold, which is the highest value in the naming of jewelry fineness. The mark is pure gold, 999 gold, gold999 or g999. Pure gold: gold with a gold content of not less than 990 per thousand is called pure gold. The mark is "pure gold", "990 gold", "gold990" or "g990".

In theory, only 100% gold can be called 24K gold, but in reality it is impossible to have 100% gold. Therefore, China stipulates that only gold with a content of 99.6 or more (including 99.6) can be called 24K gold.

These types of K gold content are common specifications for jewelry. The state stipulates that gold jewelry with less than 9K cannot be called gold jewelry.