Our company provides the following round diamond cut propotions

Tolkowsky's Proportions

Table Width

53%

Total Depth

59.3%

Crown Angle

16.2% or 34° Degrees

Pavilion Depth

43.1% or 40°

Girdle Edge

Extremely Thin - Knife Edge

AGS-1 Excellent Proportions

Table Width - %

51.4 - 52.3% -or- 57.6 - 59.5%

Crown Angle – degrees

32.7° - 33.6° -or- 35.9° - 36.3°

Pavilion Depth - %

43.9 - 44.3%

Girdle Thickness

Very Thin

Culet Size

Slightly Large

AGS-2 Very Good Proportions

Table Width - %

59.6 – 61.5%

Crown Angle – Degrees

32.2° - 32.6° -or- 36.4° - 36.8°

Pavilion Depth - %

41.7 – 42.1% -or- 44.4 - 44.8%

Girdle Thickness

Very Thin to Slightly Thick

Culet Size

Slightly Large or Smaller

AGS-3 Good Proportions

Table Width - %

50.4 – 51.3% -or- 61.6 - 63.5%

Crown Angle - Degrees

31.7° - 32.1° -or- 36.9° - 37.3°

Pavilion Depth - %

41.7 - 42.1% -or- 44.4 - 44.8%

Girdle Thickness

Thick

Culet Size

Large