I used to visit here when I was trying to find out what I liked, it's DROOL-worthy (esp. "Show Me The Ring section): Diamond Jewelry Forums - Compare Diamond Prices, Discussion & Diamond Information
They also have a search function for buying diamonds and you can get very, very specific. 
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~
°¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |