help with AGA grade for princess cut

[in_need_of_help]

This is girdle information is directly from the AGA grading (1A-2A) for Princess cut diamonds (.47ct):


Thin to Medium (1.0% to 3.0%)
Medium to Thick (1.7% to 5.5%)


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The Sarin reports 4.0 (3.0 - 5.0).


GIA says thick to very thick.




When grading this diamond, should I refer to the GIA description or the Sarin numbers?




Everything else being constant, using GIA description (girdle of thick to very thick)


I get a girdle grade of 3A and final grade of 2B. Using Sarin numbers (3.0 - 5.0) I get a girdle


grade of 1B and final grade of 1A.




SARIN RESULTS:


ct .473


Length = 4.31


Width = 4.24


L/W = 1.02


Depth = 3.00 (70.8%)


Crown = 34.6 (10.7%)


Pavilion = 61.5 (56.2%)


table = 2.80 (66.1%)


Culet = 0.6%


girdle 4.0 (5.0 - 3.0)




What is the right AGA grade?