<human>: Summarize the given text in a few sentences.

Hi ladies, I had a couple questions after reading some articles that explain the diamond industry and I've decided I'd like to consider buying a non-diamond engagement ring.

To clarify some concerns that I've seen expressed:

* We have talked about marriage, it's just the ring itself that hasn't been discussed.
* I am not trying to "save money" with a non-diamond ring
* I want, and I know she wants, the ring to be a surprise, but I just want to make sure she wouldn't be disappointed with a non-diamond ring
* I'd really like to propose with a ring

Regarding choosing the ring:

* Her birthstone is a diamond, so there goes that idea.
* What other meaning can I look for in the gemstone other than "It looks beautiful, just like you!"?
* How do I figure out if she would like a non-diamond ring without making it obvious that I am going to get her one?
* Do the same "5 C's" apply to all other gemstones?
<bot>: I want to propose with a non-diamond ring. How do I go about choosing a ring that won't disappoint her?