Because according to the regulations, the back of each platinum jewelry must be engraved with a platinum exclusive logo: platinum (platinum) or Pt. After the logo, there are 1000 points indicating the purity (platinum content) of platinum, such as platinum (platinum) 950, platinum 950, platinum Pt990 (all platinum) and platinum Pt999 (all platinum).
This is like a platinum ID card, which guarantees the quality of platinum. Therefore, if you find the logo of Pt, you can buy real platinum jewelry.
Extended data:
The most common white metals in the jewelry market are platinum and platinum. Because the colors are similar, consumers often confuse the two.
In fact, they are completely different white metals. Platinum production is scarce and is known as the king of precious metals. Its pure white color is naturally formed and lasts for a long time, and it has incomparable ductility with other metals.
The main component of white gold is gold. Because it appears white after adding other metals, its essence is a mixture of 75% gold and 25% other metals, which will turn yellow after wearing for a long time.
Therefore, not all white jewelry is platinum jewelry, and it is impossible to judge whether it is real platinum jewelry from the appearance alone.
Phoenix. Com- Experts Support Two Steps to Identify True Platinum