Pt999 refers to platinum with a platinum content of over 99.9%, also known as kilofoot platinum, which is the highest purity platinum. This platinum material is very soft, easy to scratch, and not easy to embed any other jewelry, so it can only be made as plain jewelry.
If platinum is used for inlaid jewelry, pt950 platinum will be used. pt950 platinum has a relatively high hardness and good toughness and ductility, which can safely and firmly set every diamond.
Platinum is a natural pure white precious metal, known as the king of precious metals. According to the national standard for naming precious metals, only platinum can be called platinum. Platinum is 30 times rarer than gold and can only be mined in very few parts of the world. As the saying goes, rarity is precious, and the price of platinum is naturally much higher than that of gold. And platinum jewelry never fades, it can always maintain its natural silver white color.