Can I propose to my gf with this ring?

this depends on what shes like. if she is laid back and cool and loves you then she would love to be married to you regardless of the ring. unless she is just not ready. if she is stuck up at all then this will not work it would be like a cracker jack box ring to you. my wife lost her CZ and now she has a Turquoise native American ring. another thing to save money on the weeding most tuxedo places and wedding dress places usually have big sales twice a year the beginning of summer and the beginning of winter also you can make your own invitations if you get the stuff from a hobby place.