oxidised jewelry wholesale How to bring 750 platinum diamond rings in a few days in the color of Chinese gold

wholesale tech jewelry 750 is also our name 18K gold, which contains 75%of gold and 25%of other precious metals. The hardness is very high, and this may occur in the case of long -term wear. There are several possibilities if you change color in a few days: 1. During the wearing process, you have been exposed to cosmetics, hot springs or other chemicals. 2. The size of the ring mouth is not modified. 3. Only you send it back to the counter to ask