In order for a diamond to display maximum light return and the best sparkle possible the facets of the diamond have to be planned and polished carefully to ideal proportions.
Super ideal cut diamond proportions.
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Please note that gia does not assign a cut grade to fancy cut stones such as princess cut or cushion cut yet but still these proportions are critically important in analyzing the cut.
Through scientific research and experience i ve compiled the following table you can use as a reference when.
It also means that the diamond will sell at a premium.
This article has two sections.
Looking at the numbers.
That starts with hearts and arrows.
1 ideal proportions for a super ideal cut diamond.
Beyond basic cut parameters.
Reading about cut dimensions proportions and grades is similar to reading the technical specs on a car.
If a diamond is only slightly outside of super ideal cut proportions it will not matter that much.
Within the tight knit community of diamond dealers which focus on the production and distribution of diamonds which are cut to an exceptional level of diamond cut quality and optical symmetry it is generally agreed upon that a super ideal cut diamond is a round brilliant cut diamond which has been cut to a level of perfection which will.
Ultimately angles and proportions are what give a super ideal cut diamond the best performance.
But the more a diamond is within super ideal cut proportions the better the light performance will be.
In the first section we will provide our best summarized insights on ideal proportions for round and non round fancy shape diamonds.