I am obviously not an expert, yet I have learned more about diamonds in the last few months than I care to. Can someone please clarify the cushion cut for me? I understand that the diamond is a personal preference and have been introduced to the cushion while looking at round cut diamonds. It seems quite unique. The stones are by Glick and are obviously $$$. Is their something special about the term "pillow"? Is Glick that big a deal? I have seen several, but is there anything on the cert paper that I should look for? Thank you for any help!!!