I used DMC Cebelia sz 30 in light pink and light green with US sz 10 hook and ended up 11 inches in diameter.
My finish (the pink edging) is not 'exactly' what the pattern called for...but I just could not 'get it'. I did what I could figure out.
This pattern was one of the choices on the DOM
. It was not picked but I couldn't help myself and just HAD to crochet it.