Excuse me. . . but they are NOT cut differently. Amora lists the cut of their "Soaring Hearts" as a "Round Brilliant." Incidentally, this stone is not even graded on the color scale because it is blue!
Amora Gem Soaring Hearts Eternity Very Light Blue H&A Rounds
That is a specific jewelry definition with known and very defined parameters that MUST be met before it can be used. Here are the defined specifications of the "Round Brilliant cut" and how it is defined, whether it is cut by Tiffany, Charles & Colvard, Amora, or any other stone cutter:
Figures 1 and 2 show the facets of a round brilliant diamond.
The original round brilliant-cut was developed by Marcel Tolkowsky in 1919. The modern round brilliant consists of 58 facets (or 57 if the culet is excluded), ordinarily today cut in two pyramids placed base to base: 33 on the crown (the top half above the middle or girdle of the stone), truncated comparatively near its base by the table, and 25 on the pavilion (the lower half below the girdle), which has only the apex cut off to form the culet, around which 8 extra facets are sometimes added. In recent decades, most girdles are faceted. Many girdles have 32, 64, 80, or 96 facets; these facets are not counted in the total. While the facet count is standard, the actual proportions (crown height and angle, pavilion depth, etc.) are not universally agreed upon.
The depth of the round brilliant may vary according to the index of refraction of the material on which it is cut. A higher index would require a shallower stone. A lower index, a deeper stone to get similar brilliance and fire, but there are more secrets to the cutting to get what are called the "hearts and arrows" look seen through the table. I think that's what you are seeing in the photo of the Amora stone. It's the most desirable effect you can get on any stone and you can get it with diamonds and C&C Moissanites too, but it is NOT a different cut on the table. This is an optimal cut that gives a mirror and refraction effect that actually creates an illusion of hearts and arrow heads seen through the FLAT table. Here is that illusion:
Hearts and Arrows using a special viewer
on a wide tabled diamond for clarity.
My girlfriend's C&C 10 carat Moissanite has perfect hearts and arrows. . . and a flat table. Her $50k five carat wedding ring given to her by her late husband also has perfect hearts and arrows in the main 2.5 carat F color, VVS2 center stone. . . and a flat table.
Let's look at the Amora and the C&C Moissanites:
Top, Amora, Bottom, Charles & Colvard, both Round Brilliant Moissanites
The Amora is placed on a gray background and it is distinctly showing that background through the gem . . . it should not. Both however have a FLAT table, but the Amora's is remarkably, and almost impermissibly, small compared to the C&C which limits the light that can both enter and escape the stone. The C&C table has twice the area of the Amora.