I read on this website somewhere that Jessica Simpson''s eternity band is a shared prong, but it looks like it is actually a 4 prong. If you look at the big pic you can see the 4 prongs. Is it just me or is it really a 4 prong?
https://www.pricescope.com/forum/jewelry-pieces/updated-celebrity-rings-t75052-270.html
https://www.pricescope.com/forum/jewelry-pieces/updated-celebrity-rings-t75052-270.html