29.026 A Girl’s Best Friend

  • Strickland, Robert W;USACF (now USFG) Newsletter, Mar 1993, p1;
  • L/W=1.335
  • H/W=0.648
  • Vol/W^3=0.240
  • 68+16 Facets
  • Gear: 96
  • Remarks: Winner of Dimond Dilemma Contest.
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> W W U U L L T T C C P P A B C D E F G H J K A B C D G H 1 2 3 G1 4 5 6 7 8 G2 G3 9 G4 1 2 3 4 5 6 7 9 A B C D E F A B C D E F G H J K A B C D G H 1 2 3 G1 4 5 6 7 8 G2 G3 9 G4 1 2 3 4 5 6 7 9 A B C D E F PC29.026 A Girl's Best Friend Strickland, Robert W; USACF Newsletter, Mar 93, p15 Crown suggestion Fred Van Sant n Diamond Dilemma Contest This design won first place. Angles for R.I. = 1.540 68 facets + 16 girdles 2-fold, mirror-image symmetry; 96 index L/W = 1.335 T/W = 0.331 U/W = 0.250 P/W = 0.451 C/W = 0.184 Vol/W³ = 0.240 pc29026.asc
142.63°03-45-51-93Cut to PCP
241.35°08-40-56-88Meet P1 at PCP
340.00°10-38-58-86Meet P1-P2 at PCP
G190.00°06-42-54-90Fix width, form P1-G1-G1-P1.
458.15°06-42-54-90Meet G1-P1-P1-G1. Establish width.
558.68°09-39-57-87Meet P1-P2-P4
657.88°11-37-59-85Meet P2-P3-P5
741.34°12-36-60-84Meet P2-P3-P5-P6
839.73°18-30-66-78Meet P3-P7-P7-P3
G290.00°09-39-57-87Meet P4-P5-G1
G390.00°11-37-59-85Meet P5-P6-G2
956.86°14-34-62-82Meet P6-P7-P8
G490.00°14-34-62-82Meet P6-P9-G3
A55.77°06-42-54-90Match pavilion; fix girdle thickness.
B53.25°09-39-57-87Level girdle. Meet A-G1-G2
C52.17°11-37-59-85Level girdle. Meet B-G2-G3
D51.28°14-34-62-82Level girdle. Meet C-G3-G4
E31.36°96-48Meet A-G1-G1-A.
F22.42°07-41-55-89Meet A-B-E.
G20.26°13-35-61-83Meet B-C-F
H24.51°24-72Meet C-D-G
J7.00°96-48Meet E-F-F
K5.25°24-72Meet G-H-G

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