Some people believe that emerald green eyes have magical powers and may have the ability to see into the future. And some people believe that those with green eyes are more intuitive or perhaps can even speak with the spirit world. Some even believe that emerald eyes will bring luck and attract great fortunes. For these reasons and for their rarity, emerald eyes are highly coveted in the Uncanny Valley.

The Uncanny Valley is a term used to describe the relationship between the human-like appearance of a robotic object and the emotional response it evokes.

In this phenomenon, people feel a sense of unease or even revulsion in response to humanoid robots that are highly realistic.