Dispersion

Dispersion refers to the splitting of white light into its individual spectral colors by a gemstone.

Part of speech: noun
Definition: In the jewelry industry, the term 'dispersion' is critical in evaluating the optical performance of gemstones. It describes the process by which a gemstone breaks down incident white light into its constituent spectral colors, akin to a prism effect. This characteristic is particularly prized in diamonds and other transparent gemstones where the play of color enhances their allure and visual appeal. The higher the dispersion, the more noticeable and vibrant the spectrum of colors seen as the stone is moved under a light source. This phenomenon contributes significantly to a gemstone's brilliance and overall value, making dispersion a key factor in the assessment of precious stones.