Gemstone Designs
With
Pictorial and Full Cutting Instructions
Presented by
(TM)
Davis Designs
A word of caution:
(TM)
You are warned that names that are shown here may not work for finding
designs
in DVue2.
Cutting Instructions for the oval above.
PC 02.095A
Long, Robert H & Steale, Norman W.
Seattle Facet
Design, Nov 1986.
Modified
by: Larry W. Davis: Davis Designs.
Wichita,
Ks. Oct. 1998. A very deep stone.
Angles for
R.I. = 1.54
73 facets
+ 16 facets on girdle = 89
2-fold, mirror-image
symmetry
96 index
L/W = 2.207
T/W = 1.269 T/L = 0.575
P/W = 0.994
C/W = 0.194
H/W = (P+C)/W+0.02
= 1.207
P/H = 0.823
C/H = 0.160
Vol./W^3
= 0.924
PAVILION
1
49.57 09-39-57-87
2
53.92 96-48
3
42.00 24-72
4
43.03 20-28-68-76
5
48.43 12-36-60-84
6
52.88 07-41-55-89
7
55.50 02-46-50-94
8
72.55 01-47-49-95
9
68.31 04-44-52-92
10
62.37 08-40-56-88
11
55.52 17-31-65-79
12
90.00 17-31-65-79
13
90.00 08-40-56-88
14
90.00 04-44-52-92
15
90.00 01-47-49-95
CROWN
A
50.72 01-47-49-95
B
43.57 04-44-52-92
C
42.01 08-40-56-88
D
33.96 17-31-65-79
E
29.64 12-36-60-84
F
40.22 03-45-51-93
G
26.63 96-48
H
23.80 06-42-54-90
J
12.89 24-72
T
0.00 Table
CUTTING INSTRUCTIONS DELETED BY REQUEST OF
MR. Fred Van Sant
Creator of the original design.
Cutting instructions for the above stones
13067.GEM
Angles for R.I. = 1.54
46 facets + 12 facets on girdle = 58
3-fold, mirror-image symmetry
96 index
L/W = 1.048 T/W = 0.626 T/L = 0.597
H/W = 0.525
Vol./W^3 = 0.161
PAVILION
43.63 01-30-34-62-66-95
90.00 02-94
90.00 05-27-38-58-69-91
40.80 05-27-38-58-69-91
90.00 30-34-62-66
41.00 03-93
41.80 29-67
42.06 35-61
CROWN
40.00 05-27-38-58-69-91
40.00 01-30-34-62-66-95
32.76 03-93
34.89 29-67
31.93 36-60
25.32 38-58
0.00 Table
19.46 32-64
15.89 17-79
20.77 06-90
21.40 96
Cutting instructions for the Tribble
TRIBBLE: A Triangular Brilliant (TRIBBLE.GEM)
by Robert W. Strickland
Sep. 28, 1989; Rev. Oct. 28, 1990
Angles for R.I. = 1.54
55 facets + 15 facets on girdle = 70
3-fold, mirror-image symmetry
96 index
L/W = 1.032 T/W = 0.553 T/L = 0.536
P/W = 0.430 C/W = 0.171
H/W = (P+C)/W+0.02 = 0.621
P/H = 0.692 C/H = 0.276
Vol./W^3 = 0.201
PAVILION
1
46.00 14-18-46-50-78-82 Cut to TCP
2
43.00 10-22-42-54-74-86 Meet TCP of 1
3
90.00 14-18-46-50-78-82 Cut to final size
4
90.00 10-22-42-54-74-86 Meet 1-2-3 (level girdle)
5
44.50 16-48-80
Meet 1-1-3-3
6
42.96 12-20-44-52-76-84 Adjust to meet culet and 2-3-4
7
42.10 09-23-41-55-73-87 Meet 2-2-6-6. Sensitive to angle!
8
47.00 96-32-64
Meet 2-7-4
9
90.00 96-32-64
Meet 2-7-4-8
CROWN
A
45.50 14-18-46-50-78-82 Leave some girdle
B
38.00 10-22-42-54-74-86 Level girdle
C
44.00 16-48-80
Meet 3-3-A-A
D
30.94 08-24-40-56-72-88 Meet A-B-C
E
52.20 96-32-64
Adjust to meet B-B-D-D and girdle
T
0.00 Table
Meet A-B-C-D
The designer
expresses his gratitude to Walter Carss
for proof-cutting
the design and making several
valuable
suggestions.
080PEAR.GEM
Angles for R.I. = 1.54
52 facets + 14 facets on girdle = 66
1-fold, mirror-image symmetry
96 index
L/W = 1.256 T/W = 0.755 T/L = 0.601
P/W = 0.450 C/W = 0.139
H/W = (P+C)/W+0.02 = 0.610
P/H = 0.739 C/H = 0.229
Vol./W^3 = 0.250
PAVILION
1
44.00 03-09-15-21-27-
69-75-81-87-93
3
37.00 39-57
2
41.30 33-63
G1
90.00 03-09-15-21-27-
69-75-81-87-93
G2
90.00 33-63
G3
90.00 39-57
4
42.00 96-12-24-72-84
5
37.33 36-60
CROWN
5
35.00 96-12-24-72-84
6
32.60 36-60
1
42.00 03-09-15-21-75-
81-87-93
8
20.00 06-18-78-90
11
0.00 Table
2
48.50 27-69
3
46.31 33-63
9
14.51 30-66
10
19.60 42-54
7
24.75 48
4
36.48 39-57
PC 13.114 Portuguese Cushion Triangle (PORTRI.GEM)
Hawes, Ernie: New Mexico Facetor, May-Jun 96
Equal girdle segments
Angles for R.I. = 1.54
94 facets + 15 facets on girdle = 109
3-fold, mirror-image symmetry
96 index
L/W = 1.032 T/W = 0.623 T/L = 0.603
P/W = 0.491 C/W = 0.166
H/W = (P+C)/W+0.02 = 0.677
P/H = 0.725 C/H = 0.245
Vol./W^3 = 0.248
PAVILION
90.00 08-24-40-56-72-88
3
55.00 08-24-40-56-72-88
90.00 12-20-44-52-76-84
2
55.00 12-20-44-52-76-84
90.00 16-48-80
1
55.00 16-48-80
4
49.19 06-26-38-58-70-90
5
50.00 10-22-42-54-74-86
6
50.00 14-18-46-50-78-82
7
47.00 16-48-80
8
47.00 12-20-44-52-76-84
9
45.00 14-18-46-50-78-82
10
43.00 16-48-80
CROWN
a
44.00 16-48-80
b
44.00 12-20-44-52-76-84
c
44.00 08-24-40-56-72-88
d
39.00 14-18-46-50-78-82
e
39.45 10-22-42-54-74-86
f
35.00 16-48-80
g
35.00 12-20-44-52-76-84
h
30.00 14-18-46-50-78-82
T
0.00 Table
CUTTING INSTRUCTIONS DELETED BY REQUEST OF
MR. Fred Van Sant
Creator of the design.
If you wish directions for cutting this stone you should see the
DVue2 listing and
or the GemCad files which are on the net elsewhere.
CROWN
A
90.00 04-28-36-60-68-92 Fix the size
1
48.81 04-28-36-60-68-92 Level girdle
3
32.96 96-32-64
Meet 1 and 2 at the girdle
4
30.53 16-48-80
Meet 1 at the girdle
T
0.00 Table
Meet 2,3,4
PAVILION
B
50.00 04-28-36-60-68-92 Cut to TCP
C
44.81 05-27-37-59-69-91 Meet B at the girdle
E
40.90 07-25-39-57-71-89 Meet B and C at the girdle
F
44.60 01-31-33-63-65-95 Meet B and D at the girdle
D
45.31 02-30-34-62-66-94 Meet B at the girdle
CROWN
2 36.00 02-30-34-62-66-94 Meet 1 at girdle
PAVILION
