How does high-temperature annealing affect diamonds?

High-temperature annealing affects diamonds by enhancing their color. This process involves subjecting diamonds to elevated temperatures, which can influence the electronic structure of the carbon atoms within the diamond. As a result, it can change the arrangement of certain atoms and affect how the diamond interacts with light, ultimately leading to improved color appearance.

For instance, diamonds that initially exhibit a yellowish hue may become more colorless or display a more desirable color as a result of the annealing process. This enhancement of color is an important aspect of diamond treatment, appealing to consumers looking for visually appealing stones.

While clarity and inclusions can be altered by different treatment methods, high-temperature annealing primarily focuses on color enhancement rather than reducing inclusions or increasing clarity. Strengthening the diamond's structure is not typically a direct result of annealing, as diamonds are already known for their exceptional hardness and structural integrity.