Millennium by Dick Glismann

Millennium Planviews

GemCad Ray Traces for RI = 1.54
Random Model Cosine Model ISO Model
GemCad Ray Traces for RI = 2.16
Random Model Cosine Model ISO Model

Millennium
Designed by Dick Glismann
This gem design was made available for the first time at the Award Luncheon of the Intermountain Faceters Guild on March 11, 2000 in Ogden, UT. The Millennium cut was developed by Dick Glismann. It uses the pavilion of the Lace Cut with a diamond facet crown added in place of the simpler lace design crown. In light-colored material, it yields a very bright and attractive gem. Please give it a try! You will be pleased with the results.
Angles for R.I. = 1.54 97 facets + 16 facets on girdle = 113
16-fold, mirror-image symmetry 96 index
L/W = 1.000 T/W = 0.619 T/L = 0.619 P/W = 0.444 C/W = 0.150 H/W = (P+C)/W+0.02 = 0.614 P/H = 0.722 C/H = 0.245
Vol./W^3 = 0.215Brightness at 0° tilt
RI = 1.54: COS = 65.4 ISO = 69.0
RI = 2.16: COS = 69.8 ISO = 86.4

Pavilion
1 42.00° 03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93 Cut to culet centerpoint
2 90.00° 03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93 Match 1, cut level lower girdle
3 41.58° 96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90 Meet at culet centerpoint
Note: Use 1200 lap for #3 facets. Best to rub by hand with stationary lap. Leave #3 facets unpolished.
Crown
a 47.00° 03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93 Match 2, cut level upper girdle line
b 40.00° 96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90 Meet 2.a.a.2
c 35.00° 03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93 Meet b.a.b
d 30.00° 03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93 Meet c.b.c
t 0.00° Table Cut level table

Download PDF format printer friendly cutting instructions: [ Download Icon Millennium Printer Icon ]

Download the GemCad format design file: [ Download Icon millennium.gem ]


Index of Gem Designs

Perfect Transfer Index

Table of Contents

Bob Keller