What are 'proportions' in relation to polished gems?

Proportions in the context of polished gems refer specifically to the angles and relative measurements of the gem. This aspect is crucial because it influences not only the overall appearance of the stone but also how light interacts with it, which can affect brilliance and sparkle. The proportions determine how well a gemstone is cut and shaped, which can highlight its beauty and maximize its optical performance.

When a gem is cut with optimal proportions, it allows for better light performance, enhancing its visual appeal. For example, the ratio between the table size, crown height, and pavilion depth can significantly alter how a gemstone reflects and refracts light. Understanding these elements is essential for evaluating a stone’s quality and aesthetic value.