18k gold is not pure gold. The meaning of 18k gold is that the purity of gold in jewelry is 18k. According to China's regulations, gold with a purity of 99.9% or higher is 24K. 18K gold, also known as 18K gold, has a proportion of 18/24, which is 0.75, or 750 parts per thousand. Therefore, 18K gold is composed of 75% gold and 25% other metals.
The advantages of 18k gold
1. Rich in color
118K gold contains 75% gold and 25% other metals. Due to its synthetic nature, it has a richer color. Common colors include white, rose gold, gold, etc. Their appearance is fashionable and beautiful, with more choices.
2. High hardness
K gold has high hardness and is not easily deformed. It has stronger support than platinum and is particularly suitable for the design of some large carat diamond rings. It can firmly set diamonds and showcase different diamond ring designs, and is not easy to fall off when worn for a long time.
3. Affordable prices
Because it contains 25% other metals and has low purity, the price of 18K gold is relatively affordable and cost-effective.
Disadvantages of 18k gold
Easy to change color
There is a layer of electroplating on the surface of K gold, which may cause discoloration of the K gold ring holder after long-term wear. This is because the coating will be worn off in areas that are frequently rubbed.