I ve only listed the most popular shapes to keep things simple.
Table cut diamond.
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.
The ideal table percentage will vary based on the shape of your 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.
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 cut of a diamond greatly affects a diamond s brilliance.
These diamonds although found in the 16th century were most often utilized from the 17th through the earlier 18th century in jewelry.
Here s a beautiful 1 01 carat oval cut diamond from blue nile with a table of 54.
Each of the four sides has a simple facet similar to a bevel.
Below is an example of a late 17th century cross.
Here s a chart of recommended depth and table percentages that i personally use when shopping for high performance diamonds.
This means if it is cut poorly it will be less luminous.
For a pear shape diamond an ideal table size is 53 to 65 percent.
A table cut diamond is so named for the simple fact that the top is flat like an ordinary table.
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.