Reflection Problem ?

I’m trying to make a reflection for diamonds. I stared with one and find it working good. But i note that when ball get close to diamond the reflection appears on the ball.

the problem is when i moved the ball a little bet it away it disappear.

I need it appear and disappear smoothly.

Is your reflection probe size large enough to see the ball when away ?
The reflection probe is an approximation but not a real reflection that will cost a lot of computation.
Maybe with two reflection probe or using a better resolution.
Or find a shader that make true reflection.
Or a shader that mix the image of the ball to the color/texture. then move it according to the position
of the real ball.
Also you could use an another camera and a render texture to make reflection.
Well it’s not easy but possible…

No. when ball hit the reflection box, orange color appear on ball surface.