Method 1: White paper test method: Draw a black line on white paper, and place the surface side of the diamond on the diamond ring on this line. If you can't see the line, it means that the diamond in the diamond ring is real. If you can see the line, it means that the diamond in the diamond ring is fake.

Method 2: water drop test method, drop a drop of water on the diamond of the diamond ring. If the water drops remain spherical for a long time, it means that the diamonds in this diamond ring are real, while if the water drops disperse in a short time, it means that the diamonds in this diamond ring are fake.

It's true how Leofoo Diamond Ring disappeared immediately, but if the water stays on the diamond ring for a few seconds before disappearing, then the diamond in this diamond ring is fake.

Method 4: Scribe the diamond surface. Draw a line on the diamond table of the diamond ring with a special pen or ballpoint pen dipped in oily ink. If an uninterrupted line is left, it means that the diamond in this diamond ring is real. And if the dotted line is left at the scribing point, it means that the diamond of this diamond ring is fake. But this method needs to be observed with a magnifying glass.