Round Brilliant Cut Classic Series
Starting at $20
The term brilliant-cut was coined at the end of the 17th century and was represented by several forms of faceted gemstones. During the early 18th century, Brazil gave rise to the cushion-shaped old-mine cut, a forerunner of the modern brilliant cut. Back at the turn of the century, marcel tolkowsky, a member of a large and powerful gemstone family, calculated the cuts necessary to create the ideal shape. As part of his phd thesis in mathematics, tolkowsky considered variables such as index of refraction and covalent bond angles to describe what has become known as the brilliant cut. This work, diamond design: a study of the reflection and refraction of light in diamond, described the best proportions of a round brilliant cut, which would provide a balanced return of light (brilliance) and dispersion. There are 58 facets in a round brilliant cut.
