The difference between 14K rose gold and 18K rose gold: different gold content, different hardness, different imprints between 14K gold and 18K gold
1.Different gold content
Generally speaking, the gold content of 14K gold is lower than that of 18K gold, and the content of other metals is higher than that of 18K gold. Therefore, the hardness and toughness of 14K gold are also higher than that of 18K gold, but both can be inlaid with various gem.
2.Different hardness
Generally speaking, the gold content of 18K gold is higher than that of 14K gold, so the other metal elements added to 18K gold are less than those of 14K gold, so the hardness of 18K gold is higher than that of 14K gold. It is lower and the hardness is lower, but whether it is 14k gold or 18k gold can be set with a variety of gemstones. However, the hardness of 18k gold jewelry is not as high as that of 14k gold jewelry.
3.The imprints of 14K gold and 18K gold are different:
The imprint of 14K gold jewelry is: G14k, G585, AU585 or Gold 585
The imprint of 18K gold jewelry is: G18k, G750, AU750 or Gold 750
The measurement method of K gold is:
Pure gold is 24K (that is, 100% gold content), and the gold content of 1K is about 4.166%. The method of calculating the gold content with “K” comes from a carob tree on the Mediterranean coast. The carob tree has light red flowers, and the pods are about 15 cm long. The bean kernels are brown and can be made into glue. No matter where this tree grows, the size of the bean kernels is exactly the same, so people used it as a standard for measuring weight in ancient times.
Over time, it became a unit of weight for measuring precious, subtle objects. At that time, diamonds and gold were also measured using this unit, which is “Karat. It was not until 1914 that “Karat” was established as a standard internationally.
According to international standards, K gold is divided into 24 types, namely IK to 24K. However, the types of K gold used for jewelry are less than these, and the jewelry materials used in all countries in the world are not less than 8K. In this way, there are actually 17 types of K gold that are actually counted as jewelry.
Among the 17 kinds of K gold materials, 18K and 14K are the most used, and it is the main jewelry raw material in the jewelry industry of various countries. In order to enrich the expressive power of various K golds, foreign countries adjust the ratio coefficients of other alloys to synthesize K golds of different colors without changing the content standard.