Which of the following factors does NOT contribute to the overall quality of a diamond?

Price does not contribute to the overall quality of a diamond in terms of its physical attributes and characteristics. While price is often influenced by the factors that determine quality, such as clarity, cut, and carat weight, it is essentially a reflection of market demand, brand reputation, and other variables that may not directly relate to the diamond's inherent qualities.

Clarity refers to the presence of inclusions or blemishes, and it plays a crucial role in determining the visual quality of the diamond. A higher clarity grade typically indicates a more valuable diamond with fewer visible imperfections.

Cut pertains to how well the diamond has been shaped and faceted, which affects its brilliance and sparkle. A well-cut diamond can enhance light performance, making it appear more beautiful and desirable.

Carat weight measures the size of the diamond, which is an important aspect of its value and appeal. Larger diamonds are often more sought after, but their quality is evaluated based on the other factors as well.

Thus, while price is significant in the diamond market, it does not directly contribute to the overall quality assessment of a diamond based on physical characteristics.