Spread / Fire / Scint / LR

[sleeprequired]

I'm going to look try to look at some stones today to get an idea for the 'personal' side of things

lets assume i have 2 diamonds H&A cut equally precise... i wan't to know 'theoretically' how both will perform and i know the HCA doesn't take into account the star and lower girdle lengths which would be a potential game changer of course...

so these dimensions are for two stones. Can you please explain the the different 'personalities' of the stones. I am aware after watching a few videos for most eyes these differences are only theoretical.

So the main differences here are the table %, Pavillion angle, Star & lower girdle. One rates excellent except with VG spread on HCA and the other excellent for light return and very good for the rest. Given that the HCA doesn't factor in the stars and lower girdles does that mean that stone 2 could perform as well (or better) as stone 1? Theoretically.

Stone 1
Depth % 61.5
Table % 55.4
Crown Angle 34.8
Star 51.0
Pavilion Angle 40.7
Crown % 15.4
Lower Girdle % 79.0
Culet Pointed

Stone 2
Table %: 54.6
Depth %: 61.6
Crown %: 15.6
Crown Angle: 34.8
Star %: 53.0
Pav Angle: 40.9
Pavillion %: 43.1
Lower Girdle %: 78.0