Cut grading classification across diamond shapes

Cut is one of the most vital aspects to consider when buying a diamond, however, it is usually only supplied for Round Cut diamonds. Nevertheless, some experts have done research into the preferred proportions of other diamond shapes. See below to discover more about the different diamond shapes and their cut grading:

Mixed Cuts

Cushion

Good 

Depth percentage – 57 - 75 
Table percentage – 54 - 75

Very good 

Depth percentage – 58 - 70 
Table percentage – 56 - 70

Excellent 

Depth percentage – 62 - 68 
Table percentage – 58 - 65

Round Brilliant Cut

Round Brilliant Cut

Good 

Depth percentage – 56 - 67 
Table percentage – 50 - 67

Very good 

Depth percentage – 58 - 64 
Table percentage – 52 - 62

Excellent 

Depth percentage – 60 - 63 
Table percentage – 53 – 58

Modified Brilliant Cuts

Heart

Good 

Depth percentage – 45 - 65 
Table percentage – 52 – 65

Very good 

Depth percentage – 50 - 62 
Table percentage – 50 - 62

Excellent 

Depth percentage – 52 - 60 
Table percentage – 55 - 62

Oval

Good 

Depth percentage – 56 - 68 
Table percentage – 52 - 65

Very good 

Depth percentage – 57 - 66 
Table percentage – 53 - 64

Excellent 

Depth percentage – 58 - 64 
Table percentage – 55 - 62

Radiant

Good 

Depth percentage – 57 - 75 
Table percentage – 54 -75

Good 

Depth percentage – 57 - 75 
Table percentage – 54 -75

Excellent 

Depth percentage – 62 - 68 
Table percentage – 58 - 65

Marquise

Good 

Depth percentage – 56 - 68 
Table percentage – 52 - 65

Very good 

Depth percentage – 57 - 66 
Table percentage – 53 - 64

Excellent 

Depth percentage – 58 - 64 
Table percentage – 55 - 62

Princess

Good 

Depth percentage – 57 - 83 
Table percentage – 52 - 85

Very good

Depth percentage – 60 - 77 
Table percentage – 55 - 75

Excellent 

Depth percentage – 62 - 73 
Table percentage - 57 – 72

Pear

Good 

Depth percentage – 56 - 68 
Table percentage – 52 - 65

Very good 

Depth percentage – 57 - 66 
Table percentage – 53 - 64

Excellent 

Depth percentage – 58 - 64 
Table percentage 55 - 62

Step Cuts

Emerald

Good 

Depth percentage – 52 - 75 
Table percentage – 56 - 75

Very good 

Depth percentage – 55 - 70 
Table percentage – 59 - 70

Excellent 

Depth percentage – 58 - 65 
Table percentage – 60 - 65

Asscher

Good 

Depth percentage – 52 - 75 
Table percentage – 52 - 75

Very good 

Depth percentage – 55 – 70 
Table percentage – 59 - 70

Excellent 

Depth percentage – 58 - 65 
Table percentage – 60 - 65