Another asscher opinion request

[chrisw957]

I''m interested in this asscher...
It''s a 1.91 ct, I, VVS2, with 61% table, 68.2% depth, and measurements of 7.01*6.74*4.60
Attached is the sarin report.
I''ll follow up with a idealscope.

It seems to have the right numbers for me, but I''m interested in other opinions.

thanks,
chris

 

[chrisw957]

idealscope image...

thanks

 

[strmrdr]

you have a regular pic?
Based on the IS its not a good one.
too dark center.

 

[diagem]

Date: 2/19/2008 3:35:01 PM
Author: strmrdr
you have a regular pic?
Based on the IS its not a good one.
too dark center.

Storm..., question for you..., (or any other expert... and sorry for the thread-jack...)

How does the IS result affect a Cape type body color on a Diamond?
Are the results the same as on colorless Diamonds?

 

[strmrdr]

Date: 2/19/2008 3:45:12 PM
Author: DiaGem

Date: 2/19/2008 3:35:01 PM
Author: strmrdr
you have a regular pic?
Based on the IS its not a good one.
too dark center.

Storm..., question for you..., (or any other expert... and sorry for the thread-jack...)

How does the IS result affect a Cape type body color on a Diamond?
Are the results the same as on colorless Diamonds?

the results are the same, it even works on gemstones, but the interpretation gets harder with colored stones.

hmm I may be answering the wrong question however so going too answer it another way...

When cutting for color the best IS might not be the best for color because your in general getting light in and out in a stone with a good looking IS image.

 

[diagem]

No..., my question is:

Doesnt the body color of a Diamond (let say yellow or brown - not fancy level) effect the results vs. a colorless Diamond.

The result I mean..., based on a regular colorless cut..., not a fancy colored type cut?

 

[strmrdr]

Date: 2/19/2008 4:00:06 PM
Author: DiaGem
No..., my question is:

Doesnt the body color of a Diamond (let say yellow or brown - not fancy level) effect the results vs. a colorless Diamond.

The result I mean..., based on a regular colorless cut..., not a fancy colored type cut?

the results are the same, but the interpretation gets harder with colored stones.
Iv used it on some med browns in person and the stone with the best looking IS was the brighter stone.

 

[strmrdr]

lets go crazy with a DC virtual emerald cut emerald..

 

[strmrdr]

IS image...

 

[strmrdr]

chrisw957, sorry for the thread-jacking.

There are better asschers out there id keep hunting if it was me.

 

[diagem]

Date: 2/19/2008 4:04:18 PM
Author: strmrdr

Date: 2/19/2008 4:00:06 PM
Author: DiaGem
No..., my question is:

Doesnt the body color of a Diamond (let say yellow or brown - not fancy level) effect the results vs. a colorless Diamond.

The result I mean..., based on a regular colorless cut..., not a fancy colored type cut?

the results are the same, but the interpretation gets harder with colored stones.
Iv used it on some med browns in person and the stone with the best looking IS was the brighter stone.

So I understand the color does make a difference in the results.

 

[diagem]

Date: 2/19/2008 4:12:16 PM
Author: strmrdr
IS image...

I would also imagine there will be a difference between virtual and real colored stones....
as the transparency is not quite the same...

 

[strmrdr]

Date: 2/19/2008 4:16:46 PM
Author: DiaGem
So I understand the color does make a difference in the results.

Yes the color changes the appearance of the image.
The hardest part is identifying partial leakage as the results are somewhat unpredictable.
But take a bunch of cape stones and you can still pick the one with the best light return using the IS but not with the accuracy you can with a colorless stone and its a lot more brain work.

 

[strmrdr]

Date: 2/19/2008 4:29:19 PM
Author: DiaGem

Date: 2/19/2008 4:12:16 PM
Author: strmrdr
IS image...

I would also imagine there will be a difference between virtual and real colored stones....
as the transparency is not quite the same...

it takes transparency and absorption into account but virtual colored is not as accurate as with colorless yes.

 

[diagem]

Date: 2/19/2008 4:33:11 PM
Author: strmrdr

Date: 2/19/2008 4:29:19 PM
Author: DiaGem

Date: 2/19/2008 4:12:16 PM
Author: strmrdr
IS image...

I would also imagine there will be a difference between virtual and real colored stones....
as the transparency is not quite the same...

it takes transparency and absorption into account but virtual colored is not as accurate as with colorless yes.

Thanks..., thats what I figured..., too bad not all Diamonds are colorless...

 

[chrisw957]

Actual image...

 

[strmrdr]

Id pass on this one.