The round brilliant cut diamond is by far the most popular diamond shape available. For years, diamond cutters have been researching the ways to optimise the fire and brilliance in a round diamond. In addition to being the most popular and researched shape, a round diamond will give you more flexibility in terms of balancing cut, colour, and clarity grades while still getting the fire and brilliance you desire.

To maximize the brilliance of a traditional round diamond, select one in the two highest cut grades - ideal or very good - and choose ideal, excellent, or very good polish and symmetry grades.