PC 09.205

Crushed Ice Diamond

Cushion Modified Brilliant
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DataVueopen
L/W
100%
Design RI
2.42
H/W
73%
Gear
96
V/W³
0.290
Symmetry
4 (mirrored)
Facets
93
Tiers
15
Crown
16
Pavilion
77

Robert W. Strickland 28 Aug 2014

The versions I saw online didn't have steps 3 and 4, so their girdle was not level. This design is popular for diamonds because of its high yield for octahedral diamond crystals. Step 5 is just 2.24 deg. from an octahedral crystal face (which cannot be polished).

Wireframe

Crushed Ice Diamond 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 222264650707494
CAM preform angle 35.00
G290.00°
 816324056648088
CAM preform angle 32.15
P158.00°
 222264650707494
P254.00°
 816324056648088
P352.00°
24487296
P448.50°
12366084
P542.80°
 618304254667890
P642.00°
 915333957638187
P740.75°
12366084

Crown

#AngleFacetsNotes
C140.30°
 222264650707494
C236.60°
 816324056648088
C334.50°
24487296
C432.00°
12366084
C522.90°
 321274551697593
T0.00°
96