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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

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