Actually I Kind of agree with you. I went to JP and yes they sell really good quality diamonds. But I don't really need a scope in reality do I? I went to gold heart with my gf and she was fine with the cheap ones also, in fact we put the celestial rings beside some some ring (0.5c), and honestly we both couldn't really see the great difference. Makes me wonder if I should really be so particular about the diamond...
How much does larry sell their lazare diamonds? Can I get a 0.5c under 5k? With good specs.
All I can say is that you will be paying more for something less if you get from GH or LH even the big T... Scope helps you to see the quality of the stone and to filter out non performing stones. When you get a performing stone, the stone will speak for itself. My SO can't stop admiring her stone under sunlight and office fluorescent light, it's really a sight to behold. Cut is the most important element in selecting diamond. Don't buy a diamond for the sake of buying... buy knowing what you are getting and eventually on her finger ya.

