Garry H (Cut Nut) Plz help

[Hoos]

Is it possible a diamond with good numbers (within ideal ranges) actually not an ideal cut?

1.75 ct G VS1

Very good cut/Ex polish/Ex symmetry

Depth 61.6

table 57

crown angle 35

Crown height 15.5

Pavilion angle 40.6

Pavilion depth 43

Now I''m confused with this diamond

If I input Crown angle/pavilion angle,HCA is 0.9

if I use crown height/pavilion depth HCA is 2.4

What a huge difference between 0.9 and 2.4 ! Why ? Thank you for your opinions !

 

[Garry H (Cut Nut)]

rounding errors in your data from the scan / lab policy etc.
Angles are always the most accurate