Brilliant Cut
Rough_Rock
- Joined
- Jun 5, 2003
- Messages
- 22
Hello..
I have a question about the height, angle, and depth variances (out of round) for a round cut stone. Is there any rule of thumb for how off they can be? The stone that I purchased is a 1A cut, but the pavillion depth varies by 1.5, and the girdle by 1.8. Just curious...For example,
Round 1.04 VS1 G
6.51 x 6.58 x 3.98 Diameter varies by .7
Total Depth 60.9%
Crown Angle 34.4 (34.1-34.9) Angle varies by .8
Crown Height 14.3% (13.7-14.9) Height varies by 1.2
Pavil Angle 40.7 (40.2-41.0) Angle varies by .8
Pavil Depth 42.9% (42.1-43.6) Depth varies by 1.5
Culet .6% Very Small
Table Size 56.6% (55.9-57.0) Table varies by 1.1
Girdle 1.4% (0.4-2.2) Medium Girdle varies by 1.8
Very Good Polish/Symmetry
No Fluorescence
I have a question about the height, angle, and depth variances (out of round) for a round cut stone. Is there any rule of thumb for how off they can be? The stone that I purchased is a 1A cut, but the pavillion depth varies by 1.5, and the girdle by 1.8. Just curious...For example,
Round 1.04 VS1 G
6.51 x 6.58 x 3.98 Diameter varies by .7
Total Depth 60.9%
Crown Angle 34.4 (34.1-34.9) Angle varies by .8
Crown Height 14.3% (13.7-14.9) Height varies by 1.2
Pavil Angle 40.7 (40.2-41.0) Angle varies by .8
Pavil Depth 42.9% (42.1-43.6) Depth varies by 1.5
Culet .6% Very Small
Table Size 56.6% (55.9-57.0) Table varies by 1.1
Girdle 1.4% (0.4-2.2) Medium Girdle varies by 1.8
Very Good Polish/Symmetry
No Fluorescence