avril levine's is a 3ct tiffany, and nicollete sheridan's is a 1.76ct (1.15 center) tiffany ring and of course paris was rumored to be 24 ct cubic zirconia
here is the one nicole richie got as a new engagement ring after the pink one: (3 stone platinum ring (not sure of stone-maybe square emerald center with side stones), from XIV Karats, Ltd in Los Angeles)
Gwyneth Paltrow (halo emerald cut on pave band)
Kate Beckinsdale (east west emerald on a micropave band stacked with 2 bands, one a micropave band)
Kate Winslet (stacked rings)
Kelly Ripa (Tiffany platinum etoile band with diamonds stacked with a platinum round and baguette ring)
Jennifer Lopez (Harry Winston Pink Diamond (don't know shape) with sidestones)
Sophia Bush- (oval cut solitaire on half diamond band on platinum)
sebrunn, you're the best! You're finding ones I've always wanted to check out up close but could never find good pics of!! Thanks so much!! I've even been known to pause Tivo to see if I could see what Kelly Ripa pairs with her etoile band (I could tell it was an etoile but could never get a close up of the other band)...well, now I know! Thanks again!