Numbers advice for a FIC I''ve found?

[angeline]

Hi all,

I''ve found a stone that I''m intrigued by. I was thinking of going a little larger than my current 2.1ct (I know I keep changing my mind about what to do with it, Leon has it and is throwing his hands in the air I know).

Anyways here''s some numbers for the cut gurus out there.

depth 62.3
table 53
crown angle 36
pav angle 40.4
daim 8.89-8.93

The HCA gives it a 1, with being a FIC. The GIA gives it a ''Very Good'' cut grade.

Some questions:

1. Do you think it would look beautiful? I have always loved the idea of the FIC.
2. My current diameter is 8.34. Do you think the difference would look noticeable?
3. Am I crazy to go to a non-ideal cut from my current WF ES which is ideal cut?

Thanks for any and all input,

a

 

[strmrdr]

need the lgf% and an idealscope image.
lgf% is critical in a fic and face up symmetry and light return is nice to know.

 

[angeline]

Thanks Strmrdr,

I''m not too sure what the lgf is but here are some more numbers:

Star length: 45%
Lower half: 80%

I''ve got the vendor checking on it and then hopefully I''ll get an IS for it.

cheers,

a

 

[strmrdr]

Lower half: 80% == right on.

 

[angeline]

Cool! I have no idea why it''s right on, but I trust your judgement!

a

 

[Gypsy]

Date: 5/31/2007 7:11:49 PM
Author: angeline
Cool! I have no idea why it''s right on, but....

THis made me laugh.

 

[angeline]

bump for any cut nuts out there??.... or FIC-lovers....

 

[Moikoi]

would love to see that stone,small table,tall crown.

they don''t grow on trees.

 

[strmrdr]

Date: 5/31/2007 7:11:49 PM
Author: angeline
Cool! I have no idea why it''s right on, but I trust your judgement!

a

fics need lgf% on the longer side...
Lower half: 80% is GIA speak for lgf% between 77.5 and 82.5 which is a good range for fics.

 

[angeline]

Thanks strm, I appreciate the info.

a

 

[Garry H (Cut Nut)]

Date: 6/1/2007 12:42:11 PM
Author: strmrdr

Date: 5/31/2007 7:11:49 PM
Author: angeline
Cool! I have no idea why it''s right on, but I trust your judgement!

a

fics need lgf% on the longer side...
Lower half: 80% is GIA speak for lgf% between 77.5 and 82.5 which is a good range for fics.

Anything below GIA 80% would be bad - the center would look a bit dark because the star would be too fat.

GIA round so this stone could be 77.5% to 82.5% barring instrument error.
So I would like to see an ideal-scope image please Angeline.

The ideal range for this stone would be 80-85%

But even so - it would have bigger flashes of fire as a result of the trade off.

 

[HappyAnniversary]

What''s a FIC?

 

[Regular Guy]

Date: 6/2/2007 8:21:56 AM
Author: HappyAnniversary

What''s a FIC?

reviewed more here...

 

[angeline]

Date: 6/2/2007 2:25:23 AM
Author: Garry H (Cut Nut)

Date: 6/1/2007 12:42:11 PM

Author: strmrdr

Date: 5/31/2007 7:11:49 PM

Author: angeline

Cool! I have no idea why it''s right on, but I trust your judgement!


a

fics need lgf% on the longer side...

Lower half: 80% is GIA speak for lgf% between 77.5 and 82.5 which is a good range for fics.

Anything below GIA 80% would be bad - the center would look a bit dark because the star would be too fat.


GIA round so this stone could be 77.5% to 82.5% barring instrument error.

So I would like to see an ideal-scope image please Angeline.


The ideal range for this stone would be 80-85%


But even so - it would have bigger flashes of fire as a result of the trade off.

Thanks Garry for your input. Just so I make sure I''ve got it right - you are saying 80-85 is ideal but if it were 77.5-80 the center would be a little dark but there would be larger flashes of fire in return. ?

I will have the Idealscope and a Sarin on Tuesday/Wednesday next week. I will post them then and see what you good folks have to say!

Thanks very much all for your help

a

 

[Cehrabehra]

Date: 5/31/2007 7:03:44 PM
Author: angeline
Thanks Strmrdr,

I''m not too sure what the lgf is but here are some more numbers:

Star length: 45%
Lower half: 80%

I''ve got the vendor checking on it and then hopefully I''ll get an IS for it.

cheers,

a

LGF is the same as lower half

 

[strmrdr]

Date: 6/2/2007 11:25:53 AM
Author: angeline


Thanks Garry for your input. Just so I make sure I''ve got it right - you are saying 80-85 is ideal but if it were 77.5-80 the center would be a little dark but there would be larger flashes of fire in return. ?

I will have the Idealscope and a Sarin on Tuesday/Wednesday next week. I will post them then and see what you good folks have to say!

Thanks very much all for your help

a

depends on the exact angles, the gia data is rounded and just gets you in the ball park.
The is image and sarin data will answer the questions.

 

[Garry H (Cut Nut)]

FIC''s
and
Diamonds with very small tables (which often go hand in hand)
And
especially combinations of those two features should have longer lower girdle facets than TIC''s or BIC''s.
Otherwise the table gets crowded in with the star effect and can become 50% dark in the face up position.

 

[angeline]

Well the IS and other pics are in... I''m a bit disappointed in the lack of symmetry to the arrows in the IS. Don;t know how bad that would look in real life.

They also didn''t do an lgf number on the sarin. Should I ask for it?

Here''s the pics:

IS

 

[angeline]

Sarin

 

[strmrdr]

My initial reaction is too many symmetry issues especially in the girdle area.
Im going to defer to Garry on this one.
What did WF have too say about it?
Has Brian looked it over?
actual lgf% numbers instead of the rounded numbers would help.

 

[angeline]

I just spoke to John and he ran it through diamCalc? Said that the lgf sould be around 80-80.5 maybe 81, but definitely around that range.

I''m going to talk to Brian about it hopefully tomorrow. Those arrows worried me too. I guess Katie and John both said it would be better than 90% of stones but not better than 99% like the ACA.

hmmm... I''m trying to post the 40X, having probs

a

 

[Garry H (Cut Nut)]

I am happy with the LG - not too dark A.

The symmetry is unlikely to be bad enough to enable any sharp eyed consumer to notice a difference compared to say a H&A''s.

It is a mind thing - and a money thing.
I think you could live happily ever after with such a diamond - but you are the only one who can ever know

 

[angeline]

Date: 6/5/2007 6:51:50 PM
Author: Garry H (Cut Nut)
I am happy with the LG - not too dark A.


The symmetry is unlikely to be bad enough to enable any sharp eyed consumer to notice a difference compared to say a H&A''s.


It is a mind thing - and a money thing.

I think you could live happily ever after with such a diamond - but you are the only one who can ever know

This is all I really needed to know. I''m a ''if you can''t see it, I''m not going to worry about it'' kind of person.

Is the Ideal-scope a winner? Are the white holes a concern?

Thanks to you guys strm and Garry for your inestimable help, I really appreciate it.

a

 

[kcoursolle]

Date: 6/5/2007 7:40:48 PM
Author: angeline

Date: 6/5/2007 6:51:50 PM
Author: Garry H (Cut Nut)
I am happy with the LG - not too dark A.


The symmetry is unlikely to be bad enough to enable any sharp eyed consumer to notice a difference compared to say a H&A''s.


It is a mind thing - and a money thing.

I think you could live happily ever after with such a diamond - but you are the only one who can ever know

This is all I really needed to know. I''m a ''if you can''t see it, I''m not going to worry about it'' kind of person.

Is the Ideal-scope a winner? Are the white holes a concern?

Thanks to you guys strm and Garry for your inestimable help, I really appreciate it.

a

It still shows a very nice ideal scope image with little leakage, even though there are some symmetry issues. A stone like this can represent a good value for the money and still be a very pretty diamond in person...but it''s definitely not for those who need mind clean symmetry.