Ideal Cut Diamond Dimensions

For an oval cut diamond an ideal depth is less than 68 percent.
Ideal cut diamond dimensions. This means you are able to buy a larger carat size diamond for less money and get a bigger bang for your buck. So cut is often compromised. But the more a diamond is within super ideal cut proportions the better the light performance will be. They strive to maintain carat weight and quality whenever possible.
In tolkowsky s initial publication he stated that the ideal cut diamond should only have a table proportion of 53. For an asscher or emerald cut diamond an ideal depth is between 61 to 68 percent. For example see this excellent emerald cut diamond with a 64 6 depth. However don t compromise overly on the other 3cs in order to get the best proportions.
If you can obtain the above super ideal proportions without compromising on the other 3cs it would be an ideal scenario. While cut is absolutely critical the brilliance of a diamond is about all 4cs not just cut. Compared to round cut diamonds the prices of oval diamonds are generally 20 30 lower due to a better yield on rough cutting. If a diamond is only slightly outside of super ideal cut proportions it will not matter that much.
If you are looking for a diamond that exhibits superior brilliance and sparkle scroll down to use my proven table of ideal cut diamond proportions instead. They aren t exact because of the way diamond cutter s cut the stone. In 1919 the mathematician and renowned gemologist marcel tolkowsky published his findings for the perfect diamond proportions in his thesis entitled diamond design a study of the reflection and refraction of light in a diamond all diamonds that were within the parameters of the so called tolkowsky ideal cut were considered to have an excellent light return. The tolkowsky ideal cut.
Nobody can agree on a set of numbers that will accommodate every cut and shape of stone.