Fancy Cut Diamond Proportions

No laboratory assigns a grade for the proportion of a fancy shape diamond.

Fancy cut diamond proportions.

What cut proportions are best for a fancy color diamond. The best cut is one that gives the most attractive face up color. Colored diamonds are usually cut to maximize the intensity of their color rather than to maximize light return. Very small 0 02 carats 4 mg diamonds known as melée are usually given simplified cuts i e with fewer facets this is because a full cut brilliant of such small size would appear milky to the human eye owing to its inability to resolve the stone s dispersive fire conversely very large diamonds are usually given fancy cuts with many.

Unlike round diamonds the gia grading reports for fancy shape diamonds do not contain a cut grade which provides an indication of its light performance. 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. The size of a diamond may also be a factor. Fancy cut any shape other than a round brilliant.

Screenshot of fancy cut diamond grading report from gia. This is the primary reason why many beginners find it hard to assess diamonds as there is no reference or cut. In the first section we will provide our best summarized insights on ideal proportions for round and non round fancy shape diamonds. Asscher emerald heart oval pear marquise princess radiant when grading fancy cut diamonds often times the overall look of the stone is more important than all the proportion details you would look for in a round brilliant.

2 reasons why well cut fancy shape diamonds are so difficult to buy.