Marquise 1

by Arya Akhavan (September 2012)

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L/W: 227%
Design RI: 1.62
H/W: 70%
Gear: 96
V/W³: 0.505
Symmetry: 2 (mirrored)
Facets: 53
Tiers: 15
Crown: 21
Pavilion: 32

This is a nice, simple marquise that works for smaller stones. It works perfectly in tourmaline crystals that have clipped or included ends, and was designed for indicolite. There's a surprisingly nice reflection pattern that comes through the table. Works in materials from feldspar to zircon (RI = 1.52 - 1.93) with no changes.

Wireframe

Pavilion

#	Angle	Facets	Notes
G1	90.00°	2465094	Set stone size.
G2	90.00°	6425490	Meet P1, P2, G1, P3 (level girdle)
G3	90.00°	10385886	Meet P3, P4, G2, P5 (level girdle)
P5	43.66°	10385886	Meet P3, P4, G2
P3	43.57°	6425490	Meet P1, P2, G1
P4	42.76°	7415589	Meet P2, P3
P1	42.66°	2465094	Cut to centrepoint.
P2	41.53°	3455193	Meet at culet.

Crown

#	Angle	Facets	Notes
C1	41.15°	2465094	Set girdle width.
C4	39.43°	9648	Meet G1, C1
C2	37.61°	6425490	Level girdle.
C5	35.98°	5435391	Meet G1, G2, C1, C2
C3	35.00°	10385886	Level girdle.
C6	18.00°	2472	Meet G3, C3
T	0.00°	24	Meet C1, C4, C5; C2, C3, C5, C6