I am dealing withjewelers right now in loooking at some diamonds. Interestingly enough, they have thier own internal iamond grading system. In other words, I looked at a diamond they are selling--on their webiste and it says Ideal cut, then I got the GIA certificate from them later on which indicated it was a "good" cut. They have told me that they looked at all the qualities and details and gave it thier own rating which is completely seperate from GIA. The one diamond I was referring to above had excellent polish and symetry, with good dimensions and so they said it was an ideal diamond overall. Any thoughts on this? Is it worth the hassel going through this or should i actually look for a dimond with an actual legitimate excellent or ideal cut on the certificate? Thanks again!!