When you throw in the strong and concentrated chatoyancy, a six carat cat’s eye stone becomes a relatively unusual gemstone. The value of larger, superior cat’s eye stones is directly impacted by their rarity. A 6 carat cats eye stone value is determined by its size, colour (which is usually a greenish-yellow or honey brown), and chatoyancy intensity. The stone’s origin might also have an impact on its value; some places are recognised for generating especially valuable examples.