What is considered the finest color of turquoise?

The finest color of turquoise is widely recognized as sky blue. This specific shade is characterized by its vibrant and clear blue hue, reminiscent of a clear sky. Ideal sky blue turquoise generally features a uniform color without too much green, which enhances its desirability.

While some varieties of turquoise, such as greenish blue or deep blue, can also be attractive, they do not match the intensity and quality associated with the pure sky blue. Copper, while an important element in the formation and coloration of turquoise, does not refer to a color but rather to the mineral content influencing the stone's shade. Thus, sky blue remains the standard for the highest quality in turquoise color classification.