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

[diagem]

In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

 

[strmrdr]

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

would going to 52 cut it out?
would it improve the clarity grade?
I figured out how I might be able too fake a 2 step crown so give me the numbers you have now for c/p steps and table and lxw.
Ill see what I can do and keep it over 2ct.

Ill be back in a few hours...

 

[diagem]

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

A view from a different angle...

 

[diagem]

Date: 3/13/2008 4:38:34 AM
Author: DiaGem

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

A view from a different angle...

In this image you can clearly see two feathers (circled)...
One is the more problematic mention above... (lower circle)
The other one (located upper right) is positioned where the pavilion corner will be cut and polished..., which should do the job of eliminating this feather!

 

[diagem]

Date: 3/13/2008 4:44:41 AM
Author: DiaGem

Date: 3/13/2008 4:38:34 AM
Author: DiaGem

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

A view from a different angle...

In this image you can clearly see two feathers (circled)...
One is the more problematic mention above... (lower circle)
The other one (located upper right) is positioned where the pavilion corner will be cut and polished..., which should do the job of eliminating this feather!

See my marking where the pavilion corner will be cut!

 

[diagem]

Date: 3/13/2008 5:20:15 AM
Author: DiaGem

Date: 3/13/2008 4:44:41 AM
Author: DiaGem

Date: 3/13/2008 4:38:34 AM
Author: DiaGem

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

A view from a different angle...

In this image you can clearly see two feathers (circled)...
One is the more problematic mention above... (lower circle)
The other one (located upper right) is positioned where the pavilion corner will be cut and polished..., which should do the job of eliminating this feather!

See my marking where the pavilion corner will be cut!

I am hoping that by cutting the P2 step facet, the P1 will be shortened and might eliminate the problematic feather...

See markings...

 

[Garry H (Cut Nut)]

DG you would be blown away if you saw people planning diamonds like this with the full compliment of Sergey''s tools at your own finger tips.

Placing the inclusion withing a few microns inside the wire frame model and planning to exclude it manually, or with your own full spectrum of diamond designs makes it possible for non experts with a good basics education to perform at very advanced levels

 

[diagem]

Date: 3/12/2008 4:50:39 PM
Author: strmrdr

Date: 3/12/2008 4:40:39 PM
Author: DiaGem
In this image a feather (circled) is clearly noticeable on the pavilion which will have to be tackled at the next stage...
The good news..., it is located on the pavilion and it is breaking through the surface...

The bad news....., it is not comfortably located..., the location is smack on the facet junction between P1 and P2..., and worse..., it is perpendicular to the pavilion facet!

would going to 52 cut it out?
would it improve the clarity grade?
I figured out how I might be able too fake a 2 step crown so give me the numbers you have now for c/p steps and table and lxw.
Ill see what I can do and keep it over 2ct.

Ill be back in a few hours...

Sorry storm..., just noticed this one...

I (think) managed at 54 deg...
Yes..., it looks like a potential clean Diamond..., will know more after I polish the table!

8.75x6.35mm. Pavilion is pretty much done (i hope...), I just need to figure the right CA''s and either leave it at 2 steps or cut a third one in...

Pav are: 54, 41 (sorry!!

), 31..., (corners are identical, maybe a fraction (0.02) of a degree shallower on the length side mains!)
Crown is still open to changes..., right now 48,38 (and not happy (yet)

)

Let see what you can come out with..., 2 or 3 crown steps!
Dont forget it will have an open culet

 

[strmrdr]

Date: 3/14/2008 7:15:18 AM
Author: DiaGem
Sorry storm..., just noticed this one...

I (think) managed at 54 deg...
Yes..., it looks like a potential clean Diamond..., will know more after I polish the table!

8.75x6.35mm. Pavilion is pretty much done (i hope...), I just need to figure the right CA's and either leave it at 2 steps or cut a third one in...

Pav are: 54, 41 (sorry!!

), 31..., (corners are identical, maybe a fraction (0.02) of a degree shallower on the length side mains!)
Crown is still open to changes..., right now 48,38 (and not happy (yet)

)

Let see what you can come out with..., 2 or 3 crown steps!
Dont forget it will have an open culet

depth % for each pavilion step?

p1/p2 and p2/p3

 

[diagem]

Date: 3/14/2008 12:13:10 PM
Author: strmrdr

Date: 3/14/2008 7:15:18 AM
Author: DiaGem
Sorry storm..., just noticed this one...

I (think) managed at 54 deg...
Yes..., it looks like a potential clean Diamond..., will know more after I polish the table!

8.75x6.35mm. Pavilion is pretty much done (i hope...), I just need to figure the right CA''s and either leave it at 2 steps or cut a third one in...

Pav are: 54, 41 (sorry!!

), 31..., (corners are identical, maybe a fraction (0.02) of a degree shallower on the length side mains!)
Crown is still open to changes..., right now 48,38 (and not happy (yet)

)

Let see what you can come out with..., 2 or 3 crown steps!
Dont forget it will have an open culet

depth % for each pavilion step?

p1/p2 and p2/p3

Oops..., I think they are even...., maybe P3 will be a bit shorter after culet faceting.... (say 80% of P1/2)...

 

[strmrdr]

2 step crown, 47 35.5 table ~36%
47.5 35.5 would work also but a little darker.

 

[diagem]

Date: 3/14/2008 12:37:04 PM
Author: strmrdr
2 step crown, 47 35.5 table ~36%
47.5 35.5 would work also but a little darker.

Thanks..., give me three step crown...

Let say 47-35-25..., smaller steps and larger table (if possible?)

Let see it virtually...

 

[diagem]

Date: 3/14/2008 12:41:15 PM
Author: DiaGem

Date: 3/14/2008 12:37:04 PM
Author: strmrdr
2 step crown, 47 35.5 table ~36%
47.5 35.5 would work also but a little darker.

Thanks..., give me three step crown...

Let say 47-35-25..., smaller steps and larger table (if possible?)

Let see it virtually...

Or C1 at 45 (even)...

 

[strmrdr]

35.5 is the magic number for the c2, works from 47 to 48 degrees c1 and a table from 35 to 45.

 

[strmrdr]

47/35/25

fixes edge darkness but the chunky center darkness is kinda blah.
crown is down to 21% with a 40% table

 

[strmrdr]

47/36/34.5
need to keep c2 over 35.5 degrees.
35.5 is the magic number in this combo too.

 

[diagem]

Date: 3/14/2008 12:49:46 PM
Author: strmrdr
47/35/25

fixes edge darkness but the chunky center darkness is kinda blah.
crown is down to 21% with a 40% table

How is the stone going to look with a 49,38,29?

 

[diagem]

Date: 3/14/2008 1:24:08 PM
Author: DiaGem

Date: 3/14/2008 12:49:46 PM
Author: strmrdr
47/35/25

fixes edge darkness but the chunky center darkness is kinda blah.
crown is down to 21% with a 40% table

How is the stone going to look with a 49,38,29?

Or..., 48-35.5-26?

 

[strmrdr]

Date: 3/14/2008 1:25:10 PM
Author: DiaGem

Date: 3/14/2008 1:24:08 PM
Author: DiaGem

Date: 3/14/2008 12:49:46 PM
Author: strmrdr
47/35/25

fixes edge darkness but the chunky center darkness is kinda blah.
crown is down to 21% with a 40% table

How is the stone going to look with a 49,38,29?

Or..., 48-35.5-26?

works well

 

[strmrdr]

Date: 3/14/2008 1:24:08 PM
Author: DiaGem

Date: 3/14/2008 12:49:46 PM
Author: strmrdr
47/35/25

fixes edge darkness but the chunky center darkness is kinda blah.
crown is down to 21% with a 40% table

How is the stone going to look with a 49,38,29?

48-35.5-26 is better, the darkness between the between the windmills comes back.

 

[strmrdr]

Date: 3/14/2008 12:54:26 PM
Author: strmrdr
47/36/34.5
need to keep c2 over 35.5 degrees.
35.5 is the magic number in this combo too.

that is 47/36/24.5 not 34.5...
typo..

 

[strmrdr]

48-35.5-26 is my favorite of the 3 steps, I tried a bunch of different combos and its the better one.
The 35.5 is the critical angle, don''t go under on it. 35.8 or 36 may be a better target.

47or48/35.5 is my favorite for the 2 step.
Again be careful not too go under 35.5

 

[diagem]

Storm..., is the ratio correct on you examples?

8.75x6.35mm.?

 

[diagem]

Date: 3/14/2008 1:46:03 PM
Author: strmrdr
48-35.5-26 is my favorite of the 3 steps, I tried a bunch of different combos and its the better one.
The 35.5 is the critical angle, don''t go under on it. 35.8 or 36 may be a better target.

47or48/35.5 is my favorite for the 2 step.
Again be careful not too go under 35.5

Thank you..., and got you! 35.5 ..., even on the 3 step..., correct?
Show me the two step 48/47-35.5

 

[diagem]

Never mind..., just saw it on top...

 

[strmrdr]

Date: 3/14/2008 1:47:08 PM
Author: DiaGem
Storm..., is the ratio correct on you examples?

8.75x6.35mm.?

the later ones yes.
I just cheched the combos with the exact numbers and it comes out the same.
the earlier ones were 1.4 instead of 1.377

 

[diagem]

Date: 3/14/2008 1:52:14 PM
Author: strmrdr

Date: 3/14/2008 1:47:08 PM
Author: DiaGem
Storm..., is the ratio correct on you examples?

8.75x6.35mm.?

the later ones yes.
I just cheched the combos with the exact numbers and it comes out the same.
the earlier ones were 1.4 instead of 1.377

It looks like a kicken elongated Assscher is being born folks....

Thanks storm....

 

[diagem]

Date: 3/14/2008 1:55:10 PM
Author: DiaGem

Date: 3/14/2008 1:52:14 PM
Author: strmrdr

Date: 3/14/2008 1:47:08 PM
Author: DiaGem
Storm..., is the ratio correct on you examples?

8.75x6.35mm.?

the later ones yes.
I just cheched the combos with the exact numbers and it comes out the same.
the earlier ones were 1.4 instead of 1.377

It looks like a kicken elongated Assscher is being born folks....

Thanks storm....

The trple SSS stands for elongated....

, sorry Asscher family

 

[mercoledi]

I just want to pop in and thank you again for letting us observe this process, it has been very cool and informational!!


Now back to your regularly scheduled diamond cutting...

 

[strmrdr]

I wish I could run detas and had dc pro too run color etas then I could tell ya which might be better between the 3 step and 2 step if there was a difference other than looks.
cetas will be in the next version of DC standard which will be nice.