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Is this ASET overly backlit and tilted...

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Your welcome, please excuse the geek out in your thread :}

No worries at all. I enjoy reading all the geek posts too. Although I don’t have much time to dedicate to it and much of it goes over my head, I try to learn a bit. I went with the second diamond and will post pics when it arrives.

Thanks for everyone‘s feedback!
 
@Karl_K , as a general rule do 80% lgf work best with a shallower pavilion, like 40.6?
 
@Karl_K , as a general rule do 80% lgf work best with a shallower pavilion, like 40.6?

It works well with any reasonable pavilion angle.
Pavilions in the 40.6 range pop the mains/arrows a bit more than some. The longer lgf% balances that out a bit.
Shorter ones work also its a subtle thing.
 
It works well with any reasonable pavilion angle.
Pavilions in the 40.6 range pop the mains/arrows a bit more than some. The longer lgf% balances that out a bit.
Shorter ones work also its a subtle thing.

Thanks. What about 75%, does that work best with any particular combination?
 
Thanks. What about 75%, does that work best with any particular combination?
keep in mind im talking about 75 and 80 actual % not GIA rounded numbers.
There are a lot of combos that work with 75 actual % mostly in the middle ideal cut range but 77-78 are the ones that will work well with almost any reasonable combo.
GIA in their stupidity calls one 75 and the other 80.
 
keep in mind im talking about 75 and 80 actual % not GIA rounded numbers.
There are a lot of combos that work with 75 actual % mostly in the middle ideal cut range but 77-78 are the ones that will work well with almost any reasonable combo.
GIA in their stupidity calls one 75 and the other 80.

Just curious @Karl_K, how do you feel about the rounding, averaging, rounding and gross rounding in the GIA process?!? 8-):rodent:
 
I just bought a stone that I need to recut to meet HCA and GIA XXX.
It is tricky because until we scan the stone we never really know what th proportions really are.
 
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I just bought a stone that I need to recut to meet HCA and GIA XXX.
It is tricky because until we scan the stone we never really know what th proportions really are.

As I continue to learn more, this seems to be the most frustrating aspect in trying to select and advise purchases.

It almost feels like we say, "definitely, maybe" a bunch.

Imagine a world where we get a detailed SARIN report along with each lab report, rather that be GIA, AGS, etc.
 
As I continue to learn more, this seems to be the most frustrating aspect in trying to select and advise purchases.

It almost feels like we say, "definitely, maybe" a bunch.

Imagine a world where we get a detailed SARIN report along with each lab report, rather that be GIA, AGS, etc.

What should we see if the diamond is performing well irl ? What is a red flag? Are there any tips once we get the stone home?
 
She's here and she's beautiful! Thanks everyone!

 
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