I don't usually like commercial items. Granted, there are a few pieces I love that are very 'typical'. For example, the Tiffany interlocking rings necklace, Cartier love bracelet, Tiffany-style diamond solitaire, tennis bracecelt, etc. However, I prefer to have items nobody else has or hand picked stones/hand made settings. I don't like to put on a necklace and go somewhere to find 10 other women wearing one just like it. I went to a charity function just last night where every third woman was sporting a Yurman necklace. To me, it loses its charm that way. (just my opinion)
I am incredibly nit picky about jewelry. I'm overly critical and extremely demanding when it comes to designing/making/purchasing jewelry. It's an occupational hazard for my family.