GIA excellent cut, symm., and polish

[kim-h]

I hope someone can help me with this question. If you don't know crown and pavilion angles, because the diamond has a GIA cert, can you assume the diamond will do at least very good or better on the cut advisor if it has excellent cut, polish, and symmetry listed? I mean, is there any way this diamond may actually just be ok, and not exceptional?
Thank you!

 

[pricescope]

sometimes it is possible to tell...

what are the total depth% and table size % for your diamond?

 

[kim-h]

One diamond is 59.1 depth, 57 table. Another is 60/58, and the third, is 62/54. (They are around 1c, H, VS1 from 5000 to 5300) Thanks for any info, Leonid, about this topic. This site has taught me alot, but I am definitely still learning.

 

[pricescope]

the first one will score excellent on HCA. It has very little leakage and good spread.

However, one should know crown and pavilion angles for 2nd and 3rd.