In 1919, Marcel Tolkowsky, indicated that for optimum brilliance, a round brilliant cut diamond should be cut to his new standard of precisely specified angles and proportions. Tolkowsky's innovative design, frequently referred to as the "American Ideal Cut" set the stage for the modern AGS Ideal Cut and Hearts & Arrows Ideal Cut...the most brilliant and dispersive diamonds available today.

All Tolkowsky diamonds proudly display the eight Hearts and eight Arrows associated with the most perfectly Ideal cut diamonds, guaranteeing the maximum fire and brilliance according to Tolkowsky’s original mathematical principles.