Diamond Proportions
|
Diamond Shapes |
Diamond Weight |
Diamond Proportions |
Diamond Color |
Diamond Clarity
Interesting Diamonds facts
Princess Diamond Proportions Cut Chart
| |
Ideal Cut |
Premium Cut |
International Fine Trade Cut |
US domestic Average Cut |
Below Average Cut |
| Cut classes |
Class 1A |
Class 1B |
Class 2A |
Class 2B |
Class 3A |
Class 3B |
Class 4A |
Class 4B |
| Table, % |
62-68 |
68.1-71
61.9-60 |
71.1-72
59.9-59.0 |
72.1-77.0
58.9-58 |
77.1-82.0
57.9-56.0 |
82.1-85.0
55.9-53.0 |
85.1-88.0
52.9-50.0 |
> 88.0
< 50.0 |
| Crown height, % |
9-10 |
8.9-8.5
10.1-11 |
8.4-8.0
11.1-11.5 |
7.9-6.0
11.6-13.0 |
5.9-5.0
13.1-15.0 |
4.9-4.0
15.1-17.5 |
3.9-3.1
17.6-18.5 |
<3
>18.5 |
Girdle Thikness, %
Word description and percentages |
Thin to Medium or Medium to Thick 1% to 3.0% or 1.7% to 5.5% |
Thin to Thick 1% to 5.5% > more variance |
Very thin to Very thick 0.4% to 7.0% |
Extremely thin to Extremely thick 0% to > 7.0% |
Total Depth, %
Determined by factors already considered above |
64-75 |
75.1-80.0
63.9-58.0 |
80.1-83.0
57.9-57.0 |
83.1-84.0
56.9-56.0 |
84.1-85.0
55.9-53.0 |
>85
<53 |
| Polish/Symmetry |
Excellent to Good |
Good or Fair |
Poor |
Square range
Length/Width ratios (Preferences only) |
0.95-1.05 |
Rectangular range
Length/Width ratios (Preferences only) |
1.5-1.75 |
1.49-1.06
1.76-1.99 |
> Class 3 <
Class 3 |
Stock Diamond Search
80 000 Diamonds online
Negotiable prices Just Ask!
|
Original Diamonds perfectly cut Hearts and Arrows Diamonds
(
Social Networks
Jason Withers
group on Facebook