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Experts Please Help. Visual impact of optimal Crown & Pavillion Angles.

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lenhejo

Rough_Rock
Joined
May 21, 2004
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66
Hi everyone.

Will optimal crown and pavillion angles have a visual impact on a stone. I just purchased an E VS2 stone with a crown angle of 34.5 and a pavillion angle of 40.9. The table is 56 and the depth is 61.1 with a pointed culet. Will this combination really have any visual impact on my stone as opposed to another stone, ceteris paribus, with different crown and pavillion angles?

I ran a search on PS to help find an answer but couldn''t find anything.

I appreciate any help I can get.

Thanks.




John-Aaron
 
There's a link at the top of the page for the cut adviser. I plugged your info in and your diamond scored very well.

Factor Grade
Light Return: Excellent
Fire: Excellent
Scintillation: Very Good
Spread or diameter for weight: Very Good
Total Visual Performance 1.5 - Excellent within TIC range

A score below 2 (Excellent) means you have eliminated known poor performers (more than 95% of all diamonds). Your own personal preference may be for a diamond with an HCA score of 1.5 more rather than one with a lower score of say 0.5.

The HCA is a screening tool to help people choose among candidates. The category ratings are indicators of the type of performance you can expect.

Sounds like you picked a dazzler!!
appl.gif
 
The crown and pavilion angles work together to optimize (in the good cases) light return. This looks like a great combo. An idealscope will show you the actual light return. You can get more info on how the crown and pavilion angles impact the stones performance from the tutorial here or at www.goodoldgold.com. A less optimal combination would have light leakage, negatively impacting the stone's sparkle. The degree of the leakage would determine how obvious to the eye it would be.

Your stone sounds like a winner. Congratulations on your purchase!
 
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