What are the best diamonds in the world? I have heard Tiffany, Harry Winston, Eightstar, and the like. What are some of the other high end, most exclusive dealers in the world? There are no Eightstar dealers near me. How can I trust buying one online if I don''t get to see it myself. Will I SEE the difference between D E F and G stones with my bare eyes? Will an Eightstar honestly have more fire and brilliance than the stones I''ve seen inside Tiffany''s? Thanks so much.