"But it won’t be like that. I’m still nervous, but it’s a good kind of nervousness. I’m not scared, not insecure. And I know I won’t feel embarrassed when I think about it in a few years, because... because I know that you love me and I know that I love you. Otherwise, I wouldn’t have let you put that truly obscene ring on my finger." And it was obscene. The diamond was large enough that she could clobber a man with it. Should Voldemort somehow find a way to return again, that ring would be the best weapon the wizarding world had to offer.