Table Round Cut Diamond

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Table round cut diamond. The ideal table percentage will vary based on the shape of your diamond. Tables are measured in percentages. Table depth other specifications for ideal round cut diamonds round diamonds are the only diamond shape that the gia grades for cut. The shape gained traction in 1919 the year that marcel tolkowsky published his thesis titled diamond design.

The holloway cut adviser u s. The popularity of round diamonds is nothing new. The basic or full table cut was developed from the point cut a basic octahedral shape by truncating the uppermost point of the octagon leaving a flat table at the top of the stone a. This means if it is cut poorly it will be less luminous.

The cut of a diamond greatly affects a diamond s brilliance. Using the recommended table and depth percentages above you can easily rule out diamonds that aren t well cut. Below are the best estimates for lower prices of the fancy cut diamonds based on the above price indexes. The original table cut diamond is one of the earliest diamond shapes and can be seen as the first step towards the diamond shapes that are popular today.

Table percentage is calculated by dividing the width of the table by the overall width of the diamond. For example the ideal table for round cut diamonds is between 54 60 percent while the ideal dimensions for emerald cut diamonds puts table percentage between 66 72 percent. A study of the reflection and refraction of light in a diamond. A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut cut does not refer to shape pear oval but the symmetry proportioning and polish of a diamond.

For a princess cut diamond. With modern diamond cutting technologies round cut diamonds are even more brilliant than ever before. For a round cut diamond an excellent table range is 54 and 57 percent like this beautiful 1 05 carat round cut with a table of 57. Dividing the width of the table by the overall width of the diamond you can find the table percentage.

A diamond s cut refers to how well the stone s angles align and how perfectly the stone was polished. For round cut diamonds i always look for a table between 54 to 57 and a depth between 61 and 62 5. A very good cut can have the table of 52 to 53 percent or 58 to 60 percent. These percentages are helpful when you re working with diamonds of various carat sizes because you will be able to find the most ideal cut at any size essentially anything between 50 and 69 percent is considered alright.

Patent 7 251 619 is a rejection tool to help you narrow your search for only round diamonds potential light return fire scintillation and spread based on the rounded proportion information from a grading report.