The Round diamond is considered superior to the fancier diamond shapes because of the
breath-taking sparkle it provides. This is because virtually all Round diamonds are
brilliant cut, which ensures maximum light reflection and brightness. Because of this, it is
hardly surprising that the Round diamond is the most popular of all cuts, accounting for
more than 50 per cent of diamonds sold worldwide.
Please note that when we refer to the diamond ‘cut’ in terms of the diamond’s shape, it is
not to be confused with the diamond’s actual cut, which refers to the proportions of the
diamond and how well polished it has been from the raw material. You can discover more about
this by heading to the cut section.
This diamond shape can be traced back to Ancient Hindu texts, when Indian fishermen would
discover loose stones in the streams and rivers below the Himalayas. However, the real origins
of the Round diamond cut can be traced back to the 17th century, when they were known as
Mazarins. This is when more complex and refined diamond cutting techniques were used. As time
went by, this diamond shape developed further.
Nevertheless, the Round Brilliant cut like we know it today did not come about until 1919 when a
noted engineer and diamond cutter, Marcel Tolkowsky, published a particular mathematical
computation of proportions and angles to create optimal fire and brilliance. This is why the
Round Diamond can also be called the Tolkowsky Ideal cut.