If I could tell you one thing about the perfect engagement ring and wedding set, it would be to make it user friendly.  It’s not always about the size.  I find many times having to remove my tall set diamond wedding ring for my daily job.  Many setting options are available and although the diamond is the most important part, presentation can be everything.  Television shows currently depict gorgeous engagement rings that are low profile and also bring that bling factor you are looking for.  Think about her style and I’m sure she’s dropped a few hints.  But, take in mind her busy lifestyle and know that her ring will be with her forever, til death do us part.