Platinum, palladium, gold, k gold, etc. There are many kinds of ring materials, and now platinum, palladium, gold, k gold and so on are mainly used. Platinum is the most expensive and rare, natural and white, never fades, and its chemical properties are stable. It is called love metal, and it is a perfect choice. Palladium is also a rare precious metal, one of the platinum group elements, silvery white. In history, the price was once higher than platinum, but now it is cheaper than K gold, which is not a common choice for diamond ring materials. Gold, a traditional precious metal in China, is an indispensable aristocrat in traditional weddings. In recent years, it has gradually disappeared from the wedding of the younger generation. However, in recent years, due to the skyrocketing price of gold, it has quietly returned. K gold is actually a mixed metal of gold and other precious metals. There is 18k- gold, that is, 75% of gold is mixed with other precious metals. Common 18k gold is usually white, that is, white 18k gold. Some people call it "platinum", not natural white. In many cases, the surface is plated with white metal and becomes white.