lightscope image

[dark918]

Could someone give me pointers on how to analyse this lightscope image? Thanks

 

[researcher]

There''s a great tutorial here.

 

[Gonzodogg]

You cannot tell a lot of specifics from just the image other than to say it looks good. (The symetrical arrows and lack of white spots means that there will be minimal light leakage=max light return) Basically it will sparkle a lot.

If you want to know more, you need to look at the diamond''s specific measurements.

 

[Dancing Fire]

dark918
i wouldn''t mind owning that diamond.

beautiful image.

 

[Scintillating]

That''s a near perfect, if not perfect, IS image.
Very nicely cut stone.

Scintillating...

 

[Mara]

very nice scope image...do you have other specs or images? GOG should have a brilliancescope reading too...what does it say?

 

[dark918]

Date: 12/15/2005 2:46:24 AM
Author: Mara
very nice scope image...do you have other specs or images? GOG should have a brilliancescope reading too...what does it say?

It did get 3 very highs on the bscope, so i was wondering if the bscope results could be accurately predicted by the lightscope image

 

[strmrdr]

Date: 12/15/2005 6:52:01 AM
Author: dark918

Date: 12/15/2005 2:46:24 AM

Author: Mara

very nice scope image...do you have other specs or images? GOG should have a brilliancescope reading too...what does it say?

It did get 3 very highs on the bscope, so i was wondering if the bscope results could be accurately predicted by the lightscope image

yes with a catch.
By Jon yes, by me most of the time because of how much iv studied them.
By pretty much anyone else not likely.
There are a ton of small details to look at and it is hard to explain, comparing a ton of them to b-scope readings is the only way I know of to pick it up.

 

[valeria101]

I wouldn''t know what to add to what is already on Johnatan''s tutorial - the tool is his construction after all.


Anyway, wow to symmetry. I wouldn''t have thought it could go quite this far.

 

[kevinyonker]

Does this image look about the same?

 

[strmrdr]

they are comparable yes.
same general recipe using slightly different angles.
Id hazard a shot in the dark guess the first is around 34.3/40.9 and the second around 34.7/40.8 c/p angles.
both are around 60% stars the second has slighty shorter lgf%

 

[kevinyonker]

Damn close. 2nd. image is 34.4 crown angle and 40.9 pavillion angle. Depth 61.5 Table 55.1

You're good...How do you do that?

 

[belle]

Date: 12/16/2005 1:09:55 PM
Author: kevinyonker
2nd. image is 34.4 crown angle and 40.9 pavillion angle. Depth 61.5 Table 55.1

aaawwww..close strm! at least you made it within range. try sucking in some helium before you guess next time.

 

[strmrdr]

Date: 12/16/2005 3:01:58 PM
Author: belle

Date: 12/16/2005 1:09:55 PM

Author: kevinyonker

2nd. image is 34.4 crown angle and 40.9 pavillion angle. Depth 61.5 Table 55.1

aaawwww..close strm! at least you made it within range. try sucking in some helium before you guess next time.

rofl

 

[strmrdr]

Date: 12/16/2005 1:09:55 PM
Author: kevinyonker
Damn close. 2nd. image is 34.4 crown angle and 40.9 pavillion angle. Depth 61.5 Table 55.1


You're good...How do you do that?

lol I dunno but thats a pretty big miss.
I thought it was one of his other cutters diamonds who cuts to different angles.
It might be the new one which is why I missed it.
Does one have a gia cert and the other an ags cert or both gia certs?

that is partly how i did it i guess, figure out which cutter cut it then go with the range they cut too.

 

[Garry H (Cut Nut)]

 

[dark918]

Date: 12/16/2005 7:22:21 PM
Author: strmrdr

Date: 12/16/2005 1:09:55 PM
Author: kevinyonker
Damn close. 2nd. image is 34.4 crown angle and 40.9 pavillion angle. Depth 61.5 Table 55.1


You''re good...How do you do that?

lol I dunno but thats a pretty big miss.
I thought it was one of his other cutters diamonds who cuts to different angles.
It might be the new one which is why I missed it.
Does one have a gia cert and the other an ags cert or both gia certs?

that is partly how i did it i guess, figure out which cutter cut it then go with the range they cut too.

First one is GIA cert 34.4/40.8

 

[Rhino]

I"d like to see the Helium on that first one. I''m willing to bet that all azimuth angles do not deviate from ideal no more than .5 degrees on each of the pavilion facets. Super tight.

 

[valeria101]

Date: 12/16/2005 3:01:58 PM
Author: belle

Date: 12/16/2005 1:09:55 PM
Author: kevinyonker
2nd. image is 34.4 crown angle and 40.9 pavilion angle. Depth 61.5 Table 55.1

aaawwww..close strm! at least you made it within range. try sucking in some helium before you guess next time.

Let me guess... pattern recognition ?

Jonathan''s LS works nicely for the purpose. Other IS version may blur the lines - literally. At least for me...

 

[kevinyonker]

Dark918,

Second is a AGS cert. It''s an Isee2.