Depth and Table Percentages

To calculate the table and depth percentages of a Round Billiant Cut diamond, use the following formula:

Table %  =  Table Measurement (mm)                    
                   Average Girdle Diameter/Width (mm)

Depth %  = Depth (mm)                                       
                   Average Girdle Diameter/Width (mm)

For fancy cut diamonds the following calculations are made:

Table %  =  Table Measurement (mm) 
                   Width (mm)

Depth % =  Depth (mm)
                   Width (mm)