Design Factors
The original Hearts and Arrows were diamonds that surfaced in the mid 80’s in Japan and embodied three important design factors. First, they were cut to “ideal proportions”, very close to those summarized by Marcel Tolkowsky in his 1919 book, Diamond Design. Second, they were cut with superior physical and optical symmetry so that they would garner a grade of “Excellent” in the Japanese laboratories. The third and very 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 tables sizes that are imperative in producing a distinctive, repeatable and gradable hearts and arrows pattern.
Less than 1% of the world´s rough diamond crystals are pure enough to become a hearts and arrows diamond. Using 100X magnification and analysis through all stages of production, the artisanal cutters create perfection at 10X global standards for grading and evaluation.
A Hearts and Arrows diamond takes up to four times longer to cut than other diamonds.
Read more about this topic: Hearts And Arrows
Famous quotes containing the words design and/or factors:
“Nowadays the host does not admit you to his hearth, but has got the mason to build one for yourself somewhere in his alley, and hospitality is the art of keeping you at the greatest distance. There is as much secrecy about the cooking as if he had a design to poison you.”
—Henry David Thoreau (1817–1862)
“Language makes it possible for a child to incorporate his parents’ verbal prohibitions, to make them part of himself....We don’t speak of a conscience yet in the child who is just acquiring language, but we can see very clearly how language plays an indispensable role in the formation of conscience. In fact, the moral achievement of man, the whole complex of factors that go into the organization of conscience is very largely based upon language.”
—Selma H. Fraiberg (20th century)