Round diamonds sparkle more than other diamond shapes due to their unique cut, which is designed to maximize light reflection and dispersion.
Ideal Proportions:
The round brilliant cut has 58 facets each precisely angled to reflect light at its best. In comparison, the emerald cut only has 17 facets meaning its sparkle is much less because the light reflects only 17 compared to 58 with the round. The round shape is meticulously designed to allow light to enter the diamond, reflect off the facets, and then return through the top, creating maximum brilliance.
Symmetry:
The round shape is symmetrical, which helps light reflect evenly across the diamond. Shapes like princess or emerald cuts have fewer facets or different facet arrangements, which can reduce the amount of light that is reflected and recycled.
Depth and Angle: The round cut is typically cut with more depth than other shapes, contributing to its light return. Other shapes, like the princess or cushion cut, have different depth and angles, which can cause the light to exit the diamond in less optimal directions.
Brilliance vs. Fire:
While round diamonds are cut for brilliance (the white sparkle), other cuts like the princess or radiant shape tend to have more “fire” (coloured light dispersion), but they don’t always have the same level of brightness or sparkle as the round brilliant.
The most important factor when choosing the right diamond for your partner is to choose the shape they prefer, however if they want sparkle, your decision is simple!
