Clear Skies

by Arya Akhavan (August 2013)
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Gemology Projectopen
L/W
100%
Design RI
1.61
H/W
66%
Gear
96
V/W³
0.243
Symmetry
4 (mirrored)
Facets
125
Tiers
17
Crown
61
Pavilion
64

It's a wonderful sunny fall day today, and for some reason, instead of being outside, I'm being productive while cooped up inside. I ended up taking a pre-existing crown from "Confusion" and making it a bit more "standard" (boring). Works in materials from beryl to CZ (RI = 1.58 - 2.16) with no changes, but I prefer it in blue topaz. Suggested size = 12-25 mm

Wireframe

Clear Skies 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
 519294353677791
Set stone size.
G290.00°
 321274551697593
Level girdle.
G390.00°
 123254749717395
Level girdle.
P342.86°
 123254749717395
Meet at culet.
P442.33°
 222264650707494
Meet G2, G3, P2, P3
P242.18°
 321274551697593
Meet at culet.
P541.40°
 420284452687692
Meet P1, P2, G1, G2; culet
P141.00°
 519294353677791
Cut to centerpoint.

Crown

#AngleFacetsNotes
C136.91°
 123254749717395
Set girdle width.
C236.91°
 321274551697593
Level girdle.
C336.91°
 519294353677791
Level girdle.
C534.28°
 420284452687692
Meet {G2, G3 OR G4, G5}, C2, C3
C434.00°
96244872
Meet {G1 OR G6}, C1
C631.12°
 123254749717395
Meet C1, C2, C4, C5
C731.12°
 321274551697593
Meet C1, C2, C4, C5, C6
C821.60°
 519294353677791
Meet C5, C7
T0.00°
24
Meet C8, C9