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Symmetry in Fancy Shape

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diamondlove4

Rough_Rock
Joined
Apr 19, 2009
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Everyone on the board seems to say that numbers and quality grades don''t mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn''t mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?
 
Date: 10/16/2009 2:32:08 AM
Author:diamondlove4
Everyone on the board seems to say that numbers and quality grades don''t mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn''t mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?
It depends, good symmetry is more often seen in fancy shapes and can be perfectly acceptable but images are needed to prove that the good symmetry grade isn''t having a negative impact in some way.
 
double
 
Date: 10/16/2009 4:05:36 AM
Author: Lorelei

Date: 10/16/2009 2:32:08 AM
Author:diamondlove4
Everyone on the board seems to say that numbers and quality grades don''t mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn''t mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?
It depends, good symmetry is more often seen in fancy shapes and can be perfectly acceptable but images are needed to prove that the good symmetry grade isn''t having a negative impact in some way.
So true...

Its much more complicated to achieve the EX symmetry results on asymmetrical shapes vs. symmetrical shapes (eg rounds or perfect squares)...
 
Date: 10/16/2009 7:50:40 AM
Author: DiaGem
Date: 10/16/2009 4:05:36 AM

Author: Lorelei


Date: 10/16/2009 2:32:08 AM

Author:diamondlove4

Everyone on the board seems to say that numbers and quality grades don''t mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn''t mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?

It depends, good symmetry is more often seen in fancy shapes and can be perfectly acceptable but images are needed to prove that the good symmetry grade isn''t having a negative impact in some way.
So true...


Its much more complicated to achieve the EX symmetry results on asymmetrical shapes vs. symmetrical shapes (eg rounds or perfect squares)...

So you''re saying that a square shaped stone, even though it''s considered a fancy shape, should still have excellent symmetry just as the round? Or can princess cuts and square radiants still be better performers with a "good" symmetry than they might be with an "excellent" symmetry? Thanks!
 
Date: 10/16/2009 11:14:24 AM
Author: diamondlove4

Date: 10/16/2009 7:50:40 AM
Author: DiaGem

Date: 10/16/2009 4:05:36 AM

Author: Lorelei



Date: 10/16/2009 2:32:08 AM

Author:diamondlove4

Everyone on the board seems to say that numbers and quality grades don''t mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn''t mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?

It depends, good symmetry is more often seen in fancy shapes and can be perfectly acceptable but images are needed to prove that the good symmetry grade isn''t having a negative impact in some way.
So true...


Its much more complicated to achieve the EX symmetry results on asymmetrical shapes vs. symmetrical shapes (eg rounds or perfect squares)...

So you''re saying that a square shaped stone, even though it''s considered a fancy shape, should still have excellent symmetry just as the round? Or can princess cuts and square radiants still be better performers with a ''good'' symmetry than they might be with an ''excellent'' symmetry? Thanks!
Thats not what I said..., but since you ask;
My opinion is that fancy shapes & rounds can be great performers with an ''only'' good symmetry label attached...

Now the question remains..., define your ''performer'' definition?
It might be different than my definition...
 
style="WIDTH: 99%; HEIGHT: 119px">Date: 10/16/2009 11:52:27 AM
Author: DiaGem
Thats not what I said..., but since you ask;
My opinion is that fancy shapes & rounds can be great performers with an ''only'' good symmetry label attached...

Now the question remains..., define your ''performer'' definition?
It might be different than my definition...
What I mean by performer is a diamond that has excellent light refraction... maximum brilliance, sparkle, etc. I guess what I''m trying to understand is that it seems that what was stated was that square stones with "good" symmetry might actually outpeform (have better brilliance and sparkle) than even diamonds rated as having "excellent" symmetry. Is that true?

If I want a great high quality diamond (F and up, VVS2 or VS1 and up, etc) with great light refraction, when it comes to symmetry of a square diamond, can "good" for a square be the equivalent of "excellent" for a round? If I am getting a diamond in a high end store and don''t have ASET images to really judge it, what should the guidelines really be in picking the best for someone with an untrained eye?
 
Date: 10/16/2009 3:22:47 PM
Author: diamondlove4
style="WIDTH: 99%; HEIGHT: 119px">Date: 10/16/2009 11:52:27 AM

Author: DiaGem

Thats not what I said..., but since you ask;

My opinion is that fancy shapes & rounds can be great performers with an ''only'' good symmetry label attached...


Now the question remains..., define your ''performer'' definition?

It might be different than my definition...

What I mean by performer is a diamond that has excellent light refraction... maximum brilliance, sparkle, etc. I guess what I''m trying to understand is that it seems that what was stated was that square stones with ''good'' symmetry might actually outpeform (have better brilliance and sparkle) than even diamonds rated as having ''excellent'' symmetry. Is that true?


If I want a great high quality diamond (F and up, VVS2 or VS1 and up, etc) with great light refraction, when it comes to symmetry of a square diamond, can ''good'' for a square be the equivalent of ''excellent'' for a round? If I am getting a diamond in a high end store and don''t have ASET images to really judge it, what should the guidelines really be in picking the best for someone with an untrained eye?
Date: 10/16/2009 3:22:47 PM
Author: diamondlove4
style="WIDTH: 99%; HEIGHT: 119px">Date: 10/16/2009 11:52:27 AM

Author: DiaGem

Thats not what I said..., but since you ask;

My opinion is that fancy shapes & rounds can be great performers with an ''only'' good symmetry label attached...


Now the question remains..., define your ''performer'' definition?

It might be different than my definition...

What I mean by performer is a diamond that has excellent light refraction... maximum brilliance, sparkle, etc. I guess what I''m trying to understand is that it seems that what was stated was that square stones with ''good'' symmetry might actually outpeform (have better brilliance and sparkle) than even diamonds rated as having ''excellent'' symmetry. Is that true?


If I want a great high quality diamond (F and up, VVS2 or VS1 and up, etc) with great light refraction, when it comes to symmetry of a square diamond, can ''good'' for a square be the equivalent of ''excellent'' for a round? If I am getting a diamond in a high end store and don''t have ASET images to really judge it, what should the guidelines really be in picking the best for someone with an untrained eye?

bump. Hoping someone has some additional input. Thanks!
 
Date: 10/16/2009 11:14:24 AM
Author: diamondlove4



Date: 10/16/2009 7:50:40 AM
Author: DiaGem



Date: 10/16/2009 4:05:36 AM

Author: Lorelei





Date: 10/16/2009 2:32:08 AM

Author:diamondlove4

Everyone on the board seems to say that numbers and quality grades don't mean much when it comes to fancy shaped diamonds. Does that mean that symmetry grade of say good instead of excellent doesn't mean that this diamond would lack anything in light refraction in comparison to a stone that is stated to have excellent symmetry?

It depends, good symmetry is more often seen in fancy shapes and can be perfectly acceptable but images are needed to prove that the good symmetry grade isn't having a negative impact in some way.
So true...


Its much more complicated to achieve the EX symmetry results on asymmetrical shapes vs. symmetrical shapes (eg rounds or perfect squares)...

So you're saying that a square shaped stone, even though it's considered a fancy shape, should still have excellent symmetry just as the round? Or can princess cuts and square radiants still be better performers with a 'good' symmetry than they might be with an 'excellent' symmetry? Thanks!
No and yes. I am saying that you see good symmetry more often in fancy shapes than VG/ Excellent. This isn't always an issue or will have a negative impact on the beauty of the diamond having good symmetry, but as it is a possibility images are needed in each and every case to make sure. It is possible a radiant as an example with good symmetry ( which doesn't impact beauty in that case) and great proportions etc would look better than one with excellent symmetry and not so effective proportions, but it really isn't possible to make definitive statements here. Princess, if you want a top cut go for an Infinity or non brand AGS0, with other fancy shapes which aren't cut graded evaluate each carefully with images and your own eyes and keep symmetry and polish to good and above if you can find it. Remember symmetry is only part of the story and not a major deciding factor of the overall beauty and successful performance of the stone.
 
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