Table Round Cut Diamond

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.

Table round cut diamond.

For a limited time the hca is now available free for all stones in our diamond search results just click on the hca column of the diamond. Table percentage is calculated by dividing the width of the table by the overall width of the diamond. The popularity of round diamonds is nothing new. Using the recommended table and depth percentages above you can easily rule out diamonds that aren t well cut.

With modern diamond cutting technologies round cut diamonds are even more brilliant than ever before. 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. 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. For round cut diamonds i always look for a table between 54 to 57 and a depth between 61 and 62 5.

Tables are measured in percentages. 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. The shape gained traction in 1919 the year that marcel tolkowsky published his thesis titled diamond design. 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.

This means if it is cut poorly it will be less luminous. Besides table and depth proportions i also follow a list of ideal proportions in crown and pavilion angles here. 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 very good cut can have the table of 52 to 53 percent or 58 to 60 percent.

For a princess cut diamond. The cut of a diamond greatly affects a diamond s brilliance. It takes a bigger larger rough diamond to cut it into a round diamond than it does to cut it into a fancy cut diamond such a cushion cut diamond. A diamond s cut refers to how well the stone s angles align and how perfectly the stone was polished.

The holloway cut adviser u s. A study of the reflection and refraction of light in a diamond. Round cut diamonds are generally more expensive than other fancy cut diamonds. Below are the best estimates for lower prices of the fancy cut diamonds based on the above price indexes.

The ideal table percentage will vary based on the shape of your diamond.