About Round-Cut Diamonds
The exceptional round brilliant diamond has been engineered to achieve optimum light return. When each of its 58 facets is cut with perfect precision, this abundance of light creates a balance of fire, brilliance, and scintillation. All of this translates to a striking, sparkling diamond.
Marcel Tolkowsky, a mathematician and engineer, is widely credited with creating the ‘ideal cut’ proportions for a round brilliant-cut diamond. His original design provided the foundations of a round-cut diamond, which has since been improved to further light return and better suit modern diamond cutting techniques.
For a closer look at the ins and outs of buying a diamond, take a look at our Complete Diamond Buying Guide.
GIA Certified Round Diamonds
Instead of delving deep into proportions and percentages, modern buyers can benefit from GIA diamond reports. Expert gemologists scrutinize each individual diamonds in a complex series of tests, before issuing them consumer-friendly cut grades.
The report outlines the necessary characteristics of your round diamond: clarity, color, cut, and carat weight. The specific proportions of the diamond can be found on the lab certificate report, along with the given grade; Excellent, Very Good, Good, Fair, and Poor.
All of our GIA round diamonds can be set in a piece of jewelry of your choosing.
Round Cut Diamond: Frequently Asked Questions
Need to know more? Here are some of our frequently asked questions from customers looking to buy round diamonds.