2 thoughts on “Why do I buy the 18K Platinum necklace for some signs G18K, while others are identified as AU750. What is the difference between the two? Please advise.”
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18K gold and AU750 are the same. In fact, 18K gold and AU750 gold are different names of the same thing, which contain 75%gold rare metals. It is a mixed metal for jewelry inlaid made by special crafts. color.
18k gold is a gold content of at least 75%of the gold content, that is, alloys with a gold content of 18/24, and the remaining 25%are other precious metals, including platinum, nickel, silver, and gold. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing.
au750 refers to alloy containing 75%gold and 25%of other metal COPY, commonly known as 18K gold. AU750 can make different colors because it is 25%for other metals, such as white, pale yellow, pink.
The opening (K) of gold is a unit of gold:
K gold is the most common, 24K, 18K, 14K, 8K, etc. In theory, 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold. Therefore, China stipulates that gold with a content of more than 99.6%(including 99.6%) can be called 24K gold.
18k gold jewelry not only has the precious value of gold, but also has the advantages of strong methamphetamine, strong stretch, high hardness, and variety of color. It can be used in jewelry design to fully play complex and exquisite creative performance.
Due to 25%of other metals, 18K gold can also be made into different colors, such as white, yellow, and rose red, which are called: white 18K gold, 18K gold, and 18K rose gold. In the trend of world jewelry, K gold is the mainstream, and Western fashion people even use the unique and unique K gold jewelry to highlight their personal style; because K gold fashion can always meet the needs of contemporary young people, so in fashion, it is in fashion. The status of the boundary is enduring, forming a popular style of wearing K gold jewelry.
The staff of the Golden Bao Yishi Golden Jewelry Quality Supervision and Inspection Station of the Tangshan City Quality and Technical Supervision Bureau said that Platinum (also known as platinum) jewelry does not have the so -called 18K in national standards. Its purity is 850 ‰, 900 ‰, 950 ‰, 990, 990 ‰, etc. are represented by "PT850", "PT900", "PT950", "PT990". The so -called 18K is a representation of the purity of gold jewelry. The text logo should be standard in "G18K" or "AU750" and "Gold 750", which means that it contains 750 ‰ of gold and 250 ‰ nickel, aluminum, zinc, iron , Silver, copper and other combinations. Due to the different ratio of different metal components, the color of the K gold jewelry in the gold series changes, and it can present different colors such as white, pink, and red. Because the price of platinum and gold varies greatly, in order to seek illegal profits, some merchants deliberately confuse them. The labels of the accessories are marked as "K platinum", "18K platinum" or "k white". These are the wrong signs. The correct one should be "White 18K Gold", "18K White Gold", "G18K". Consumers should clarify that the K gold jewelry in gold jewelry is not only yellow, but also white, red, color, etc., but white gold is not platinum.
g18k is a platinum
au750 is gold (AU is the element symbol of gold)