Okay, I am driving myself insane with the flood of conflicting data I am finding on various online sources. I am trying to find out what (for a Princess cut, F color range and VS2/SI1 clarity ranges) ranges I should stay in for Depth and Table. Also, I am confused with regard to "measurement" for Princess. I have data that says to take the length and divide that over the width... Well, with Princess cut, I have three numbers on certs to look at and I am not sure how to calculate effectively. For instance, how would I calculate a measurement of 8.18 x 7.81 x 5.81? Sorry if I am sounding stupid.