Round brilliant cut is the most popular and well-researched
shape of diamond available. Round diamonds have been
studied for almost 100 years, with the aim of optimizing
the fire and brilliance in them. A round diamond usually
gives more flexibility for balancing out cut, colour, and clarity.
Maximise the brilliance of a round cut by selecting one in
the highest cut grades, and choose Ideal, Excellent,
or very good polish and symmetry grades.