Radiant Lapidaria

by Arya Akhavan (May 2014)
Save to collection
No ratings yet
Gemology Projectopen
L/W
100%
Design RI
1.54
H/W
85%
Gear
96
V/W³
0.386
Symmetry
4 (mirrored)
Facets
57
Tiers
12
Crown
17
Pavilion
40

Someone on the Gemology Online forums asked for a "Square Radiant", and after some Googling, I found a crappy picture of this pavilion. I reverse-engineered it and tweaked it (a LOT) to get it to look good in low-RI materials. Works in materials from quartz to rutile (RI = 1.54 - 2.62) with no changes, but I prefer morganite. Suggested size = 7-12 mm

Wireframe

Radiant Lapidaria 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
96244872
Set stone size.
G290.00°
12366084
Level girdle.
P460.43°
96244872
Level girdle.
P657.61°
96244872
Meet P1, P4, P5
P353.87°
12366084
Meet P1, P2
P550.18°
 321274551697593
Meet P1, P2
P149.18°
 519294353677791
Cut to centerpoint.
P242.50°
12366084
Set pavilion depth.

Crown

#AngleFacetsNotes
C144.50°
96244872
Set girdle width.
C242.65°
12366084
Level girdle.
C341.43°
 123254749717395
Meet G1, G2, C1, C2
T0.00°
24
Meet C1, C3; C2, C3