Is this a good engagement ring?

VS1, color G-H sounds like a beautiful diamond no matter what size the stone is. Just curious but how did you come across such a great deal? I think you should go for it. At least for the diamond alone. If she is not a fan of yellow gold (I'm not) then get the center stone set into another setting. I jus got engaged and I love my ring! Looking around at different diamonds and different styles was so much fun!! :) Good Luck to you and also an early Congrats on your upcoming engagement! :)