Cut Cornered Rectangular Step Cut...., Strmrdr???

[diagem]

Add four more girdle breaks...

 

[diagem]

Date: 3/10/2008 5:02:41 PM
Author: strmrdr

Date: 3/10/2008 4:51:00 PM
Author: DiaGem
Looks ''yummy'' as you say...

, what did you put the CA''s at?

lol I hate it!
I dont like the line down the center it should be returning light! lol
crown is the same as up above.

You mean the open culet??? Dont you know that''s my signature..., I am the CuletMan...LOL

 

[strmrdr]

Date: 3/10/2008 5:09:34 PM
Author: DiaGem

Date: 3/10/2008 5:02:41 PM
Author: strmrdr

Date: 3/10/2008 4:51:00 PM
Author: DiaGem
Looks ''yummy'' as you say...

, what did you put the CA''s at?

lol I hate it!
I dont like the line down the center it should be returning light! lol
crown is the same as up above.

You mean the open culet??? Dont you know that''s my signature..., I am the CuletMan...LOL

lol cept in that case its obstruction not leakage causing it.

 

[strmrdr]

Whats the lenth and width of the rough?
height of crown using the widest part as the girdle?
same for pavilion?

btw someday im gonna talk ya into trying something other than a 41ish p2 LOL

 

[diagem]

Date: 3/10/2008 5:27:29 PM
Author: strmrdr
Whats the lenth and width of the rough?
height of crown using the widest part as the girdle?
same for pavilion?

btw someday im gonna talk ya into trying something other than a 41ish p2 LOL

L 9.00x W6.45mm. +/-
CH..., approx 35-40% I assume (based on eye judgement).
Pav..., from here to eternity... (approx.)

As long as it makes sense when it comes to the light/flash return and dont get messed up with the table/crown reflections...

 

[strmrdr]

Date: 3/10/2008 5:37:27 PM
Author: DiaGem

Date: 3/10/2008 5:27:29 PM
Author: strmrdr
Whats the lenth and width of the rough?
height of crown using the widest part as the girdle?
same for pavilion?

btw someday im gonna talk ya into trying something other than a 41ish p2 LOL

L 9.00x W6.45mm. +/-
CH..., approx 35-40% I assume (based on eye judgement).
Pav..., from here to eternity... (approx.)

As long as it makes sense when it comes to the light/flash return and dont get messed up with the table/crown reflections...

is 6x8.4 with a ch 31.5% t 40% good or can I go bigger/higher?

 

[diagem]

Date: 3/10/2008 5:49:36 PM
Author: strmrdr

Date: 3/10/2008 5:37:27 PM
Author: DiaGem

Date: 3/10/2008 5:27:29 PM
Author: strmrdr
Whats the lenth and width of the rough?
height of crown using the widest part as the girdle?
same for pavilion?

btw someday im gonna talk ya into trying something other than a 41ish p2 LOL

L 9.00x W6.45mm. +/-
CH..., approx 35-40% I assume (based on eye judgement).
Pav..., from here to eternity... (approx.)

As long as it makes sense when it comes to the light/flash return and dont get messed up with the table/crown reflections...

is 6x8.4 with a ch 31.5% t 40% good or can I go bigger/higher?

8.8-8.6x6.3-6.2mm range, 31.5 could be a go (i think), 40% table should be safe..., (unless you go crazy with CA''s...

)

 

[strmrdr]

Date: 3/10/2008 5:55:13 PM
Author: DiaGem
8.8-8.6x6.3-6.2mm range, 31.5 could be a go (i think), 40% table should be safe..., (unless you go crazy with CA''s...

)

CA 40% 56/45/38 work?
Once I have the crown nailed down will work on the pavilion I can tell ya 54/41/31 dont work with this crown.

 

[diagem]

Date: 3/10/2008 6:01:21 PM
Author: strmrdr

Date: 3/10/2008 5:55:13 PM
Author: DiaGem
8.8-8.6x6.3-6.2mm range, 31.5 could be a go (i think), 40% table should be safe..., (unless you go crazy with CA''s...

)

CA 40% 56/45/38 work? It might..., does it work on the software? 56 @ C1 might be a bit of a problem but can only know when the cutting is done.
Once I have the crown nailed down will work on the pavilion I can tell ya 54/41/31 dont work with this crown.

 

[strmrdr]

Date: 3/10/2008 6:07:20 PM
Author: DiaGem

Date: 3/10/2008 6:01:21 PM
Author: strmrdr

Date: 3/10/2008 5:55:13 PM
Author: DiaGem
8.8-8.6x6.3-6.2mm range, 31.5 could be a go (i think), 40% table should be safe..., (unless you go crazy with CA''s...

)

CA 40% 56/45/38 work? It might..., does it work on the software? 56 @ C1 might be a bit of a problem but can only know when the cutting is done.
Once I have the crown nailed down will work on the pavilion I can tell ya 54/41/31 dont work with this crown.

havent got that far yet wont know for sure unil I get too the pavilion.
Im trying too fit it too the rough at the monent.
If It will fit the rough ill move on.

 

[strmrdr]

outline ok?

 

[diagem]

Date: 3/10/2008 6:14:22 PM
Author: strmrdr
outline ok?

Uufff..., Yes..., not to hightechy (thank god)...

, I like..., keep it classic!

 

[strmrdr]

ok back too the drawing board that crown is no good.
Good call :}
lower crown or smaller table?

 

[diagem]

Date: 3/10/2008 6:20:42 PM
Author: strmrdr
ok back too the drawing board that crown is no good.
Good call :}
lower crown or smaller table?

Try to keep the CH at around 25-30%..., table can be 40%>

 

[strmrdr]

t 34 c: 50/45/38 don''t work either.
Any suggestions?
This is the most finicky cut iv ever worked on, both those crowns work on asschers.

 

[diagem]

Date: 3/10/2008 6:52:08 PM
Author: strmrdr
t 34 c: 50/45/38 don''t work either.
Any suggestions?
This is the most finicky cut iv ever worked on, both those crowns work on asschers.

try C48-37-29 (corners need to be a bit shallower)
P54-44-34 (same with the corners...) (I am trying to stay away from 41..., but am not sure it will work...

)

Or work within that range...

Dont forget Asscher corner breaks are at a 45 degree symmetry..., which in this design they are not!!!
Both Pav and Crown corners are to be calculated differently as their light return work in mysterious ways in conjunction with the mains...

Who said designing Diamond cuts is easy....

 

[strmrdr]

time for a break will get back too this later lol

 

[diagem]

Me tooooo...

 

[strmrdr]

Dinner time back later, and yes this is the 11th design.

 

[strmrdr]

side

 

[strmrdr]

top

 

[strmrdr]

angles:
t 35
ch: 25.8
pd: 51%
cb 30 degrees
cb ratio: 20%
girdle 4%
td: 80.8

c:
45.5
38.5
31.5

P:
57.5
45
37.5

cc
44.94
37.96
31.01

cp
56.99
44.44
36.96

p1=p2=p3

misc: 6.2x6.68x5.01 2.28ct

 

[strmrdr]

Aset

 

[strmrdr]

Iv came too the conclusion that a higher crown is going too need a smaller table.
Any steeper on the C angles and light return takes a big hit or the angles don't work.
a 20% CH with a 45% table is another nice combo I came found but 20% is a little low for a monster.

 

[strmrdr]

here are the same angles on a 26CR asscher.

 

[strmrdr]

octomonster, I really like this one yummy!

 

[diagem]

Date: 3/10/2008 10:47:23 PM
Author: strmrdr
angles:
t 35
ch: 25.8
pd: 51%
cb 30 degrees
cb ratio: 20%
girdle 4%
td: 80.8 75

c:
45.5 48
38.5 36
31.5 25

P:
57.5 Try 53
45 43
37.5 32

cc
44.94 Same ratio change for corners.
37.96
31.01

cp
56.99
44.44
36.96

p1=p2=p3

misc: 6.2x6.68x5.01 2.28ct

 

[strmrdr]

ch down too 23 and its blecky
td 69.9

 

[strmrdr]

that crown combo dont work with this shape.
Cant balance it out.

 

[strmrdr]

Date: 3/10/2008 10:47:23 PM
Author: strmrdr


misc: 6.2x6.68x5.01 2.28ct

that is spose too be 8.68 not 6.68