Did my Fiancé overpay?

[motownmama]

It looks really pretty on your hand!

 

[Snicklefritz]

It's a beautiful ring! What about the stone bothers you?

Everyone has given you sound advice. I'd be interested to see how your jeweler would respond if the stone was GIA certed and did not come back as H SI1. Perhaps he would be able to swap you for a real H SI1 with PS approved specs.