My ring is a 1 carat (ex-fiance) solitare. TIffany style setting but I don't know where it was purchased and I dont want to know. I did however have it appraised.
FYI
A really good website to get shiny, polished coal information from is
Blue Nile
This is a link to the diamond education area: Cut, Clarity, etc...
diamonds for dummies!