What are Hearts and Arrows Diamonds?
Often abbreviated as H&A, the term Hearts and Arrow refers to those diamonds that have been cut with a very high precision to achieve 3d symmetry known as optical symmetry or optical precision. When these diamonds are examined via special reflector device, they will show a beautiful distinct pattern of 8 arrows when viewed from the top, and when viewed from the bottom, it will show a pattern of 8 distinct hearts.
Cost of producing these diamonds are very costly as it is very difficult for a diamond cutter to achieve a high level of precision.True Hearts and Arrows patterning is visual evidence of precision craftsmanship that has the potential to maximize light performance
History :
The original Hearts and Arrows were diamonds that surfaced in the mid-1980s in Japan that embodied three important design factors. The first of these factors was that they were cut to what is known in the diamond industry as “ideal proportions,” i.e. very close to those summarized by Marcel Tolkowsky in his 1919 book, Diamond Design. Second, they were cut with very good physical and optical symmetry so that they would garner the grade of “Excellent” in the system used by Japanese laboratories. The third important factor was that they were cut to a very specific brilliantine scheme to produce the accepted hearts and arrows pattern. This faceting scheme involves prescribed lengths and ratios as well as smaller table sizes that are imperative in producing a distinctive, repeatable and gradable hearts and arrows pattern.
The Hearts & Arrows Diamond Report documents the precise cut and unique, romantic facet pattern of a hearts & arrows stone. Each report features a complete classic diamond analysis, plus specialized data highlighting the cut’s signature design: a circle of hearts seen through its pavilion and arrows revealed through its crown.