pls help to run DiamCal for my wedding ring (planning to buy)

[byber]

Hi could anyone help me to run DiamCal for this ring:
GIA: 16693434
0.82 cart
price$3700



Depth: 62.3 % Table: 56 % Crown Angle: 35° Crown Height: 15.5 %
Pavilion Angle: 40.8° Pavilion Depth: 43 % Star length: 55 % Lower Half: 75 %

I found this ring and run the HCA it has 3 ex 1 vg, the price is $3700 USD, could anyone give me some advice whether this diamond is worth to buy?

thanks a lot.

P.S.
if anyone can help to run the diamcal, could you email me the result... thanks a lot