I received the Green Sea Treasure round toilet seat to use on my seafoam green toilet. I have been searching for years for an appropriate replacement and finally just had to do something! I am very happy I chose this. It cheers up the bathroom and looks great on the toilet. 
The plastic is a little 'unforgiving', i.e., my bottom sticks to it, so I did put on a cloth covering which I had been using on my old seat. Now I can move around without having to unstick myself!  That's why I gave this 4/5 stars. 
I like this so much I am thinking of getting one in another color for my 2nd bathroom.