Need your advice on this stone

[RedKen]

Ladies and Gentlemen,

I have found this stone and would like your expert opinion. I have not come accross a stone with a 54% table and wondering whether this is OK ?

GIA Certificate
Weight:1.20 Ct
Dimension: 6.84 x 6.87 x 4.25
Color: F
Clarity: VVS2
Symmetry: Exellence
Polish: Exellence
Flourescent: None
Table: 54.0%
Depth: 62.0%
Crown Angle: 35.1 degree, Crown Height: 16.0%
Pavillion Angle: 40.8 degree, Pavillion Depth: 42.9%
Girdle: Thin - Medium, Faceted
Cullet: None

Thank you for your help.

 

[pricescope]

RedKen, welcome to the forum. The numbers look rather nice and 54% table is quite ok.

 

[RedKen]

Thanks Leonid,

I was worried because I have read on here that if the crown angle is 35 or greater and the pavillion angle is around 41 degree, the diamond will experience light leakage under the table (Steep/Deep). Could a 40.8 degree on one Sarin machine be 41+ degree on another?

One other thing I notice is the the depth is 4.25mm. Isn't that a bit big for a 1.20 ct diamond?

I also look at the AGA grading and wonder why the crown angle falls in the 2A grade while the crown height is in the 1A?

Thank you in advance for everyone opinion.

Ken