cutey TT
Shiny_Rock
- Joined
- Oct 21, 2005
- Messages
- 484
Hi All.
I just entered the following #s into the HCA tool and got 3.2 - Very Good - Worth buying if the price is right (VG, G, G, VG):
Table = 56%
Depth = 61.8%
Crown Angle = 34.5
Pavilion Angle = 41.2
Then when I used the crown height (15%) and pavilion depth (43.5%) instead, I got an HCA result of 1.8 - Excellent within TIC range (Ex, VG, VG, VG).
Then I entered all of the above into AGA DIY Cut Grading tool, and got a final grade of 1A (all values were 1A except pavilion depth 43.5% = 1B). It seems that the outlying value is the 41.2 pavilion angle. Since the AGA tool does not ask for this value, it seems that the stone was not "penalized." Whereas the first HCA value took this into account, therefore resulting in the (not so desirable) 3.2 score.
Can some of you experts chime in and tell me what you think of this stone based on these values? The vendor can call in this stone for me, but I''m not really sure if I should pass based on the initial 3.2 HCA score. Help!?
I just entered the following #s into the HCA tool and got 3.2 - Very Good - Worth buying if the price is right (VG, G, G, VG):
Table = 56%
Depth = 61.8%
Crown Angle = 34.5
Pavilion Angle = 41.2
Then when I used the crown height (15%) and pavilion depth (43.5%) instead, I got an HCA result of 1.8 - Excellent within TIC range (Ex, VG, VG, VG).
Then I entered all of the above into AGA DIY Cut Grading tool, and got a final grade of 1A (all values were 1A except pavilion depth 43.5% = 1B). It seems that the outlying value is the 41.2 pavilion angle. Since the AGA tool does not ask for this value, it seems that the stone was not "penalized." Whereas the first HCA value took this into account, therefore resulting in the (not so desirable) 3.2 score.
Can some of you experts chime in and tell me what you think of this stone based on these values? The vendor can call in this stone for me, but I''m not really sure if I should pass based on the initial 3.2 HCA score. Help!?