AGS Cut Grade Parameters

Average Crown Angle in Degrees	AGS Grade
28.3 and less	10
28.4 to 29.1	9
29.2 to 29.6	8
29.7 to 30.1	7
30.2 to 30.6	6
30.7 to 31.1	5
31.2 to 31.6	4
31.7 to 32.1	3
32.2 to 32.6	2
32.7 to 33.6	1
33.7 to 35.8	0
35.9 to 36.3	1
36.4 to 36.8	2
36.9 to 37.3	3
37.4 to 37.8	4
37.9 to 38.3	5
38.4 to 38.8	6
38.9 to 39.3	7
39.4 to 39.8	8
39.9 and greater	10

Average Table Diameter Percentage	AGS Grade
45.3 and smaller	10
45.4 to 47.3	9
47.4 to 48.3	8
48.4 to 49.3	7
49.4 to 50.3	5
50.4 to 51.3	3
51.4 to 52.3	1
52.4 to 57.5	0
57.6 to 59.5	1
59.6 to 61.5	2
61.6 to 63.5	3
63.6 to 65.5	4
65.6 to 67.5	5
67.6 to 69.5	6
69.6 to 71.5	7
71.6 to 73.5	8
73.6 to 75.5	9
75.6 +	10

Average Pavilion Depth %	AGS Grade
39.4 and less	9-10
39.5 to 40.1	8
40.2 to 40.6	7
40.7 to 41.1	5
41.2 to 41.6	4
41.7 to 42.1	2
42.2 to 43.8	0
43.9 to 44.3	1
44.4 to 44.8	2
44.9 to 45.3	4
45.4 to 45.8	5
45.9 to 46.3	6
46.4 to 46.8	7
46.9 to 47.5	8
47.6 to 48.5	9
48.6 +	10

Average Girdle Thickness Overall Average	AGS Grade
Extremely Thin	7
Very Thin	1
Thin, Medium, Slightly Thick	0
Thick	3
Very Thick	5
Extremely Thick	7-10

Culet Size	AGS Grade
Pointed, Very Small, Small, Medium	0
Slightly Large	1
Large	3
Very Large	5
Extremely Large	7,8,9,10

Polish and Symmetry Characteristics	AGS Grade
Extremely difficult to locate under 10X	0
Very difficult to locate under 10X	1
Difficult to locate under 10X	2
Relatively easy to see under 10X, not visible to unaided eye	3
Easy to see under 10X, extremely difficult to see with unaided eye	4
Very easy to see under 10X, very difficult to see with unaided eye	5
Obvious to see under 10X, difficult to see with unaided eye	6
Relatively easy to see with unaided eye	7
Easy to see with unaided eye	8
Obvious to see with unaided eye	9-10

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