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Culet?

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alex

Rough_Rock
Joined
Feb 24, 2001
Messages
8
Leonid,
Looking at a diamond that has ideal cut, 1.2 on HCA, with a 0.9% culet. Is the culet too large? At what percentage does the culet play a factor in the brilliance of a diamond?
Thanks, Alex
 

Garry H (Cut Nut)

Super_Ideal_Rock
Trade
Joined
Aug 15, 2000
Messages
16,719
Hi Alex,
I am the HCA 'H'
The culet can go to 10% before any radical effects are detected by the GIA's virtual computer modeling research.
However this would look like a I3 inclusion and
frown.gif

Treat the culet like an inclusion, and at that % the size of the diamond would need to be 20ct before I would be concerned.
Dave Atlas likes a very small to small culet because it minimises risk of chipping during handling and setting.
Garry Holloway
 

pyramid

Ideal_Rock
Premium
Joined
Nov 10, 2002
Messages
4,607
Why would it look like an inclusion. I thought a large culet would just look like a window like you see in the old european cut diamonds?
 
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