Pavilion

In jewelry, a pavilion refers to the lower portion of a gemstone that extends from the girdle to the bottom tip or culet.

Part of speech: noun
Definition: The pavilion is a critical component in the design of a gemstone, playing a pivotal role in its ability to reflect light, which ultimately affects the gemstone's brilliance and sparkle. This portion is typically faceted in various geometric patterns, with the specific arrangement and angle of the facets being carefully optimized to enhance the stone's optical properties. The quality of the pavilion cut can significantly influence the perceived value and attractiveness of a gemstone. A well-cut pavilion allows for maximum light return through the top of the gem, contributing to its overall allure and desirability in jewelry pieces like engagement rings, necklaces, and earrings. Additionally, the depth and angle of the pavilion are key factors in determining the gemstone's proportion and symmetry, which are essential elements in grading its cut quality.