How to clean diamonds and gems when they are dirty

What if the diamond doesn't flash when it's dirty?

Diamonds will be easy to appear not to flash, but you can buy an ultrasonic machine yourself, and you can wash it with a beep. Parayba, tourmaline, emerald, which have many cracks in them, don't wash them. What if they are broken? The hardness of the red treasure and blue treasure is very high. If the Mohs hardness is more than 9 points, you can do it casually. It won't affect anything.

As for emerald, apply a little oil everyday, and then be careful not to bump into it. As for opals, you should also try to avoid collisions. Some opals at mine openings will crack even if they are big. This kind of cheese is really very small. Even we in the industry may not be able to figure out what kind of mine openings it will crack.