If it corresponds to the mosaic of stones of various colors, you can get the additional attribute of slot point reward.

If it is set at will, the properties of the gem will not be affected at first, but the reward of the slot will be gone.

Red, yellow and blue gemstones and their corresponding grooves are monochromatic.

Orange, green and sapphire are mixed colors, corresponding to two grooves: orange corresponds to red, yellow and purple, and red, blue and green correspond to yellow and blue.

Multicolor can only be embedded in colorful grooves, and its conditions must be met (for example, at least a few gems of what color are needed) to belong.