Asymmetrical Leakage at the edges

[GotStones]

Before I rattle any cages...I''m sure the actual diamond is beautiful.
I use this image is a reference to help illustrate my questions.

#1 The ACA classification:
In general, what level of Hearts and Arrows symmetry is required for a diamond to be called "A Cut Above"? Is there an objective threshold of acceptable deviations?

#2...is the symmetry of the light leakage something to be concerned with or is it just a problem with the angle of the photo was taken at? The arrows look symmetric, and the hearts (though not displayed here) also looked very good.

This diamond appears to be a classic cut, but the white areas around the edges are asymetrical. What does this relate to performance wise, and does this throw any warning flags.

thanks in advance....

http://www.whiteflash.com/pimg/Idealscope/is_AGS-6868310.jpg
http://www.whiteflash.com/hearts_arrows/A-Cut-Above-H-A-cut-diamond-2313847.htm

 

[Garry H (Cut Nut)]

it appears whitflash are pumping a bit more light into their IS set up.
So those little bits are not normally so visible because this is a slightly painted stone. Because the effect is so close to slight / some leakage - it is showing an intensity variance that the Ideal-scope exaggerates.

Howver if anyone tells you that the painting is a problem then I will see they are tared and feathered.

 

[GotStones]

interesting.
thanks gary.

I imagine the extra light is useful to help increase the contrast and definition.

Would this method of pumping extra light mask any potential problems with a diamond?

 

[Garry H (Cut Nut)]

Date: 8/9/2006 5:01:01 AM
Author: GotStones
interesting.
thanks gary.

I imagine the extra light is useful to help increase the contrast and definition.

Would this method of pumping extra light mask any potential problems with a diamond?

On the contrary - it shows more leakage and makes problems where there are none.