PC 13.090

London Shield

PC 13.090 London Shield

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L/W: 101%
Design RI: 1.54
H/W: 66%
Gear: 96
V/W³: 0.228
Symmetry: 3 (mirrored)
Facets: 88
Tiers: 13
Crown: 9
Pavilion: 79

Durham, Dennis; Gemcraft UK (1979) Same as 23.014

Wireframe

London Shield 3D view

Top view

Side view

Front view

Back view

Pavilion

#	Angle	Facets	Notes
G1	90.00°	963264
G2	90.00°	62638587090
P1	60.00°	963264	Meet P1-P2-P2-P1
P2	56.00°	62638587090	Meet P1-P2-P2-P1
P3	51.00°	42836606892	Level P1-P2 intersection
P4	43.00°	42836606892	Cut to PCP

Crown

#	Angle	Facets	Notes
C1	56.83°	963264	Meet A-G1-G2
C2	51.30°	62638587090	Fix girdle thickness
C3	42.00°	42836606892	Meet A-B-G1-G2
C4	32.00°	42836606892	Meet C-A-A-C
C5	23.00°	963264	Meet D-C-B-C-D
C6	21.50°	82440567288	Meet D-C-A-A-C-D
T	0.00°	48