![]() The crown angle works in harmony with the pavilion angle. See crown and pavilion combinations chart above Fig CH-1Ĭrown angle: range 33.4° - 36.4° (34° - 35° is optimum) “Angle symmetry”, which refers to all of the facets of a group being cut at the same angle, is imperative in maintaining optical symmetry, so that all eight arrows “light-up” at the same time. It is difficult to have bright evenly colored arrows in the H&A viewer, as these facets are beginning to reflect off the walls of the viewer instead of the white ring at the top. In fact, when these angles exceed 41°, the shaft part of the arrows begins to disappear. When the pavilion main facets of a diamond are angled too steep, they will not reflect maximum light back to the viewer. The pavilion main facets are like eight mirrors all angled in such a way to reflect light that enters a diamond at vertical angles from 0° to 15° from it’s axis. Tolkowsky sighted pavilion angles of 40.75° and modern optical science has confirmed these angles to be mathematically sound. The most important factor in light performance in diamonds is proper bottom angles. Exceptional Optical Symmetry created by these five component parts working together in harmony is responsible for the diamond’s exceptional light performance as well as the sharp, well-formed Hearts and Arrows pattern. ![]() Because of the high degree of symmetry and the limited proportion sets for which the patterns are visible, cutters often settle on cutting for GIA Excellent or some other premium cut instead of committing the time and weight loss necessary to produce a super ideal H&A diamond. The H&A pattern is quite sensitive to symmetrical imperfections. Cutting Hearts and Arrows is very difficult. ![]() It should be understood that excellent polish and symmetry alone is not enough to qualify for H&A status. It is assumed that the diamond must be very round and have exceptional symmetry. The five main components involved in creating a Hearts and Arrows Ideal are summarized below. These spectacularly beautiful diamonds out shined the competition, scored the highest grades in light performance, garnered the top cut grades in leading gem labs and finally that ‘cool hearts and arrows pattern” simply was “the exclamation point” on an already exciting story. Shakespeare said: “That which we call a rose, by any other word would smell as sweet." Years later, these diamonds have become the foundation of more than a dozen diamond brands with names connoting love and romance and containing words like: Hearts, Arrows, Love, Cupid, etc.Īs jewelers began to offer these diamonds in America they did not have to choose between selling the “sizzle or the steak”.these diamonds had both! We believed these incredible diamonds, known in the trade as “Hearts and Arrows” could stand on their own merit, without a fancy name, based simply on their sheer beauty & perfection in cutting. In the mid 90’s, we began to import these diamonds to America, we realized that branding was an expensive and time-consuming venture. ![]()
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