Cutting specifications
Applied Exacting Selection Criteria
BELGIAN SELECTION DIAMONDS ™
Introduction
An exiting product, for those jewelry and watch manufacturers who require a low tolerance diamond cut to the very finest proportions. In this product range no concession are made whilst grading these diamonds.
Diameter
Tolerance 0,02mm.
Exact Weight
Tolerance 0,001Ct.
Clarity
Rough stones sorted before production
1st. Grading, Polished stones sorted by Grader by 10x. magnification.
2nd. Grading, Polished stones sorted by Microscope by our Master Grader.
Color
Rough stones sorted before production.
Stones in SI and I qualities are color graded by 10x magnification.
Stones in IF to SI qualities are color graded by microscope in relation to master stones.
Cut
Every stone cut to exacting ‘Excellent’ standards.
Proportions, girdle thickness, table size and symmetry are inspected to fall within the following parameters:
| Parameter | Minimum | Maximum |
|---|---|---|
| Table % | 58 % | 60.0 % |
| Crown Angle | 34,5º | 35.5º |
| Pavilion Depth% | 42 % | 45 % |
| Total Depth % | 59 % | 62.9 % |
| Girdle Thickness | very thin (max diff. 1%) | |
| Culet | none | |
| Polish | very good | excellent |
| Symmetry | very good | excellent |
| Only the Finest Cuts stones are admitted. |
Only diamonds selected to these exacting standards deserve the title of: DCI’s ‘Belgian Selection™’ Diamonds
