in 1919 marcel tolkowsky was in pursuit of perfection, and he set the standard with the round brilliant cut. with 57 facets, the mathematical calculations used to cut a round are so precise, that not only does it maximize light return, no other shape can compete with its brilliance. 

~ with a timeless personality

~ who loves precision and maximum brilliance

~ drawn to a shape that symbolizes infinity, a completeness 

~ it is the most popular shape

~ best cut for camouflaging color and inclusions

~ rounds command the highest price per carat*

* compared to same-size shapes with the exact color, clarity, and comparable makes