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Jillian’s Cut Diamonds display a perfect optical symmetry that is harder to achieve than excellent symmetry. This diamond’s symmetry is so perfect that it displays eight heart-shaped reflections when viewed through the pavilion of the stone. When viewed through the table and crown, this “gem” of a gem displays eight arrows, which are actually the eight main faces of the stone’s pavilion.
“Hearts & Arrows” cuts have seen an enormous growth in popularity since their discovery and they are another guarantee that the Jillian’s Cut Diamonds that you purchase are among the best in the world.

What is a Jillian’s Cut Diamond?Anatomy

A GIA Triple X Hearts and Arrows Diamond

When selecting a diamond you have many choices and options beyond the basic “4 Cs.” “Color”, “Clarity”, “Cut” and “Carat Weight” are used to measure a diamond’s quality. There is another level of excellence and perfection that involves the symmetry and reflective quality of a diamond’s “Cut”, the most important “C” that affects and potentially enhances all of the others. The “Cut” is the most important factor that determines how well a diamond “performs” and how well it reflects light under a variety of lighting conditions. Practically any stone will look impressive under the bright spotlights of a jewelry store, but a rare few have the unique combination of precise “Cut”, shape, and angles to hold their brilliance in more natural lighting situations.

The Jillian’s Cut Diamond  displays a perfect optical symmetry that is to achieve than excellent symmetry. This diamond’s symmetry is so perfect that it displays eight heart-shaped reflections when viewed through the pavilion of the stone (bottom). When viewed through the crown of the stone (top), this remarkable diamond displays eight arrows, which are actually the eight main faces of the stone’s pavilion. “Hearts & Arrows” cuts have seen an enormous growth in popularity since their discovery and they are another guarantee that The Jillian’s Cut Diamond that you purchase is among the best in the world.

The original “Hearts & 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.” Second, they were cut with superior physical and optical symmetry so that they would garner a grade of “Excellent” in the GIA laboratories. The third and most 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 & Arrows” pattern.

The Science Behind The Jillian’s Cut Diamonds

Less than 1% of the world’s diamonds are cut to “Hearts & Arrows” optical symmetry precision. This is in large part due to the greater amount of rough diamond that necessitates additional polishing to create diamonds with this precise optical symmetry. Diamond polishers take up to three times longer to cut diamonds of this quality and nearly 15% more of the original diamond rough material is lost as waste. Using 100X magnification and analysis through all stages of production, the artisanal cutters create perfection at 10X global standards for grading and evaluation.

To see the “Hearts & Arrows” pattern in a diamond one must employ a specially designed light directing viewer called a proportion scope. The “Hearts & Arrows” viewer is a rather simple device that allows the viewer to analyze the physical symmetry of a diamond. This viewer allows you to inspect the alignment and contrast of the facets of the diamond using white light. This is achieved by viewing the diamond through the crown (top) and the pavilion (bottom) by directing white and colored lights at set angles that catch and reflect the light back from specific facets of the diamond.

What is a Triple X Diamond?

To some, a Triple X Diamond means status and to others it means beauty, but the bottom line is that a Triple X Diamond is determined by the cut, polish and symmetry of the finished stone. The facets are all equal, thus providing symmetry. The depth and width are near perfect, so the stone is not too shallow, too deep, too wide or too narrow. The girdle is just right and the culet is the perfect point.

The Triple X Diamond has been graded by the GIA, as deemed “Excellent” on the certification that comes with The Jillian’s Cut Diamond and it is an honor that is not given lightly.

diamondWhat is Excellent Cut Grade?

The cut grade refers to the proportions of the diamond. “Cut” is one of the
4Cs that refers to the diamond’s depth and table proportions. The overall cut grade is affected by the crown/pavilion angles, girdle, facet alignment, shapes, and lengths. All of these factors determine the ability to reflect light back out of the top and not leak the light out of the diamond’s side or culet.

What is Excellent Polish Grade?

Diamond polish refers to how smooth the outside surface of the diamond has been polished. When a diamond is cut and polished, microscopic surface defects may be created by the polish wheel. These defects may disrupt light pattern as the light rays enter and exit the diamond.

What is Excellent Symmetry Grade?

Diamond symmetry refers to how well aligned the facets of a diamond are.