Diamond proportions are assessed through measurements expressing the relationships between a diamond’s dimensions, such as table size, depth percentage, and crown angle. For example, the table percentage is calculated by dividing the table width by the average girdle diameter and multiplying by 100. These proportions significantly influence a diamond’s brilliance, fire, and scintillation, affecting its overall visual appeal.
Evaluating these dimensional relationships offers crucial insights into a diamond’s light performance. Historically, diamond cutters relied on experience and observation to achieve ideal proportions. Today, precise measurement and established standards guide the cutting process, enabling the creation of diamonds that maximize brilliance and beauty. A well-proportioned diamond will not only exhibit superior sparkle but also command a higher value in the market.