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Diamond Charts
|
Diamond Grading Chart |
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| Color Scale | DEF | GHIJ | KLM | NOPQR | STUVWXYZ |
| Colorless | Near Colorless | Faint Yellow | Very Faint Yellow | Light Yellow | |
|
Clarity Scale |
FL | VVS1-VVS2 | VS1-VS2 | SI1-SI2 | I1 |
| Flawless | Very Very Slight Inclusions | Very Slight Inclusions | Slight Inclusions | Medium Inclusions | |
|
Diamond Size Conversion Chart (Approximation) |
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|
Carat Size |
Round
MM Size |
Princess
MM Size |
Marquise
MM Size |
Pear
MM Size |
Emerald
MM Size |
Oval
MM Size |
Heart
MM Size |
Trillion
MM Size |
| .005 | 1.0 | . | . | . | . | . | . | . |
| .0067 | 1.15 | . | . | . | . | . | . | . |
| .01 | 1.3 | . | . | . | . | . | . | . |
| .015 | 1.5 | . | . | . | . | . | . | . |
| .02 | 1.7 | . | . | . | . | . | . | . |
| .025 | 1.8 | . | . | . | . | . | . | . |
| .03 | 2.0 | 1.5x1.5 | . | . | . | . | . | . |
| .035 | 2.1 | . | 2.5x1.25 | . | . | . | . | . |
| .04 | 2.2 | 1.75x1.75 | 3x1.5 | . | . | . | . | . |
| .05 | 2.4 | . | . | . | . | . | . | . |
| .06 | 2.5 | 2x2 | 3.5x1.75 | . | . | . | . | . |
| .07 | 2.7 | 2.25x2.25 | 3.5x2 | . | . | . | . | . |
| .08 | 2.8 | . | . | . | . | . | . | . |
| .09 | 2.9 | . | 4x2 | 3x2.5 | . | . | . | . |
| .10 | 3.0 | 2.5x2.5 | -. | . | . | -. | -. | 3x3x3 |
| .11 | 3.1 | . | 4.25x2.25 | -. | . | . | . | . |
| .12 | 3.2 | . | . | 4x2.5 | . | . | 3x3 | . |
| .14 | 3.3 | 2.75x2.75 | 4.5x2.5 | 4x3 | . | . | . | 3.5x3.5x3.5 |
| .15 | 3.4 | . | 5x2.5 | - | . | . | . | . |
| .16 | 3.5 | . | . | 4.5x3 | . | . | . | . |
| .17 | 3.6 | 3x3 | . | . | . | . | . | . |
| .18 | 3.7 | . | . | . | . | . | . | 4x4x4 |
| .20 | 3.8 | 3.25x3.25 | 5x3 | 5x3 | . | 4x3 | 3.5x3.5 | . |
| .22 | 3.9 | . | . | . | . | . | . | . |
| .23 | 4.0 | 3.5x3.5 | . | . | . | . | . | . |
| .25 | 4.1 | . | 6x3 | . | 5x3 | 5x3 | 4x4 | 4.5x4.5x4.5 |
| .30 | 4.2 | 3.75x3.75 | 6x3.5 | 5.5x3.5 | . | - | - | - |
| .33 | 4.4 | - | - | - | . | - | - | - |
| .38 | 4.6 | 4x4 | 7x3.5 | - | . | 5x4 | 4.5x4.5 | - |
| .40 | 4.8 | - | - | - | - | - | - | 5.5x5.5x5.5 |
| .47 | 5.0 | - | - | - | - | - | . | . |
| .50 | 5.2 | 4.5x4.5 | 8x4 | 6x4 | 6x4 | 6x4 | 5x5 | 6x6x6 |
| .60 | 5.4 | 4.7x4.7 | . | . | . | . | . | . |
| .65 | 5.6 | . | . | . | . | . | 5.5x5.5 | 6.5x6.5x6.5 |
| .75 | 5.8 | 5x5 | 9x4.5 | 7x5 | 6.5x4.5 | . | 6x6 | 7x7x7 |
| .80 | 6.0 | . | . | . | . | . | . | . |
| .95 | 6.4 | . | . | . | . | . | . | . |
| 1 | 6.5 | 6x6 | 10x5 | 8x5 | 7x5 | 7x5 | 6.5x6.5 | 8x8x8 |
| 1.10 | 6.6 | . | . | . | . | . | . | . |
| 1.17 | 6.8 | . | . | . | . | . | . | . |
| 1.25 | 7.0 | . | . | . | . | 7.5x5.5 | . | . |
| 1.33 | 7.2 | . | . | . | . | . | . | . |
| 1.50 | 7.4 | 6.5x6.5 | 11x5.5 | 9x6 | 8x6 | 8x6 | 7x7 | 9x9x9 |
| 1.60 | 7.6 | . | . | . | . | . | . | . |
| 1.75 | 7.8 | . | . | . | . | . | . | 9.5x9.5x9.5 |
| 1.90 | 8.0 | . | . | . | . | . | . | . |
| 2 | 8.2 | 7x7 | 12x6 | 10x7 | 8.5x6.5 | 8.5x6.5 | 8x8 | 10x10x10 |
| 2.15 | 8.4 | . | . | . | . | . | . | . |
| 2.25 | 8.6 | . | . | . | . | . | . | . |
| 2.50 | 8.8 | 7.5x7.5 | 13x6.5 | 12x7 | 9x7 | 9x7 | 8.5x8.5 | . |
| 2.85 | 9.2 | . | . | . | . | . | . | . |
| 3 | 9.4 | 8x8 | 14x7 | 12x8 | 10x8 | 10x8 | 9x9 | .. |
| 3.15 | 9.6 | . | . | . | . | . | . | . |
| 3.35 | 9.8 | . | . | . | . | . | . | . |
| 3.50 | 10.0 | . | 14x7.5 | 13x8 | . | 10x8.5 | 9.5x9.5 | . |
| 3.75 | 10.2 | . | . | . | . | . | . | . |
| 4 | 10.4 | . | 16x8 | 14x8 | 11x9 | 11x9 | 10x10 | . |
| 4.25 | 10.6 | . | . | . | . | . | . | . |
| 4.50 | 10.8 | . | . | 14.5x9 | . | 11x9.5 | 10.5x10.5 | . |
| 4.75 | 11.0 | . | . | . | . | . | . | . |
| 5 | 11.2 | . | 16x8.5 | 15x9 | 12x10 | 12x10 | 11x11 | . |
