PC 01.561A

Butterfly Cab Top

Clark, Don: Lapidary J, Sep 95, p114
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DataVue
L/W
100%
Design RI
1.54
H/W
68%
Gear
64
V/W³
0.229
Symmetry
21
Facets
78
Tiers
16
Crown
20
Pavilion
58

Unpolished (frosted) P2 facets for accent.

01.561A is same design except has low cabochon crown. Suggested by Helmut Zoike.

Wireframe

Butterfly Cab Top 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
64 3 6 91215182124273034374043464952555861
P155.00°
64 3 6 91215182124273034374043464952555861
P245.00°
64 3 6 91215182124273034374043464952555861
Leave unpolished
P344.50°
 262
"antennae" cut with polish lap
P443.00°
2539
P542.00°
 856
P642.00°
12145052
Meet P2-P3-P2
P742.00°
18214346
P842.00°
32

Crown

#AngleFacetsNotes
C135.00°
64 3 6 91215182124273034374043464952555861
C230.00°
64 3 6 91215182124273034374043464952555861
C325.00°
64 3 6 91215182124273034374043464952555861
C415.00°
64 3 6 91215182124273034374043464952555861
C510.00°
64 3 6 91215182124273034374043464952555861
C65.00°
64 3 6 91215182124273034374043464952555861
T0.00°
32