Traditional Culture Encyclopedia - Hotel franchise - Why did the pt950 diamond ring bought in Jin Shichang, Xining, turn yellow after five months?

Why did the pt950 diamond ring bought in Jin Shichang, Xining, turn yellow after five months?

There are several possibilities. 1 Your ring is stained with some chemicals, which leads to discoloration.

Actually, you didn't buy PT950. It's AU750.

As we can't see the real thing, we have to tell you the possibility.