When naming gems by cat's eye effect, the word "cat's eye" is added after the basic name of jewelry and jade (such as "apatite cat's eye"), and the cat's eye of gold emeralds is directly called "cat's eye".
When naming gems with starlight effect, the word "starlight" can be added before the basic name of jewelry and jade (such as "star ruby"), and when naming synthetic gems with starlight effect, the word "synthetic starlight" can be added before the corresponding basic name of natural jewelry and jade (such as "synthetic star ruby").
When naming gems with color-changing effect, add the word "color-changing" before the basic name of jewelry and jade (such as "color-changing garnet"), and when naming synthetic gems with color-changing effect, add the word "synthetic color-changing" before the basic name of corresponding natural jewelry and jade (such as "synthetic color-changing sapphire").
Other special optical effects do not participate in naming, but can be indicated in the remarks.