Gia Diamond Table

It shows twenty five example images of round brilliants five in each of the five grade categories and gives their proportion combination values for additional.

Gia diamond table.

This phenomenon occurs when the diamond has a depth that is less than the table. For a princess cut diamond an ideal table takes up 68 to 74 percent of the width of the diamond see this example of a stunning 0 90 carat ideal cut princess diamond with a table of 71. The gemological institute of america gia grants you a one time non exclusive license to reproduce in print form this booklet solely for non commercial private use to reference the gia diamond cut grading system within an individual organization. Estimating a cut grade using the gia diamond cut grading system explains the system gives definitions and displays the proportions listed on a gia diamond grading report.

The bezel facets of a diamond are where we observe the most fire. The crown facets consisting of 8 bezels 8 stars and 16 upper halves gather and disperse light to create brightness fire and a scintillating pattern of light and dark. In this particular diamond the depth is 58 4 and the table is 61 0. A very good cut can be between 56 to 67 percent or 75 to 76 percent.

For the g colored diamond we see alot more areas of black which relates to more contrast in the diamond.