I love the meowdy mood ring. I first bought it with the black kitty, and came back for the silver kitty. I now have a ring representing each of my kitties. And I like that they are reversible, though I do mostly wear it with the bum facing up.
I bought both in size 6, and the gold band is a smidge tighter than the silver (similar with the gold and silver drip rings), assuming the difference is due to the gold vermeil.