I attempt to accurately represent and describe cut stones and rough
as to appearance, size, origin and fully disclose any known
treatments in its description. Because you view the images on a
different monitor with different settings, color is particularly fickle
to represent, but I do my best.
Stripes and Blades
By: Dan Starr
Cutting Instructions
Stripes and Blades cut in Bolivian Ametrine
5.06 ct - 11.1 mm x 7.5 mm
Brightness Table
R.I.
Iso %
Cos %
1.54
94.8
88.6
1.62
94.1
86.2
1.76
92.5
81.1
1.96
88.7
74.6
2.17
85.4
67.0
Stripes and Blades - Designed by Dan Starr © 2006
Angles are for R.I = 1.54
57 Facets  +  8 Girdle Facets  =  65  Total Facets
4-fold mirror-image symmetry
96  Index
L/W = 1.00  T/W = 0.195  U/W = 0.195  P/W = 0.442  C/W = 0.188
Volume/W e3  =  0.248
Cutting Remarks  -  This design should be cut in a fairly large size, because otherwise the chevrons and blades will be very
thin. This is a "Mirage" cut as judged by Jeff Graham, and the first "Mirage" designed by someone other than Jeff. One of the
features of this type of cut is that there is not a lot of mixing of the colors. It works very nicely in ametrine.
Pavilion
P1
41.50°
96-24-48-72                                                       
Cut to center point.                                                                                       
P2(G)
90.00°
96-24-48-72                                                       
Cut to establish the square.                                                                           
P3(G)
90.00°
12-36-60-84                                                       
Cut to about 15% of width.                                                                           
P4
41.60°
12-36-60-84                                                       
Cut to meet P1 and P2.                                                                                  
Crown
C1
38.00°
96-24-48-72                                                      
Cut to establish the girdle.                                                                            
C2
37.00°
12-36-60-84                                                       
Cut to meet C1 and establish the girdle.                                                       
C3
30.40°
01-23-25-47-49-71-73-95                                 
Cut to meet the girdle at C1 and C2.                                                             
C4
33.00°
12-36-60-84                                                       
Cut a step.                                                                                                     
C5
25.40°
02-22-26-46-50-70-74-94                                 
Cut a chevron to meet at C2, C3, C4.                                                           
C6
22.00°
03-21-27-45-51-69-75-93                                 
Cut the second chevron the same width as the first.                                    
C7
20.00°
12-36-60-84                                                      
Cut to meet C4, C5, C6.                                                                               
C8
18.00°
96-24-48-72                                                      
Cut to meet C5 & C6.                                                                                   
T-C9
00.00°
Table                                                                 
Cut to about 20% of width.                                                                          
C10
18.00°
12-36-60-84                                                       
Cut to meet the Table corners.                                                                     
Cutting Instructions
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