<human>: So my SO is not one for lavish gifts etc. She's a really simple person and never asks for anything, she never expects any gifts at all or anything like that. She's the most understanding, compassionate, modest, and kindest person I've ever met. This is why I want to marry her. However, I want to buy her a beautiful engagement ring. I know she loves romantic things, and I am considering buying her an engagement ring from Tiffany's... the one I like is $10k and it looks absolutely stunning.

I went with one of my friends and she told me my SO would love it. And I know she would. I don't want to take my SO because I want it to be a surprise. We're going to Vancouver for a little trip just the two of us and I was planning on proposing to her then with this ring.
Ladies (and guys I guess), what do you think? Would you be amazed and ecstatic that you've just been proposed to with this beautiful, expensive ring, or would you be mad at your SO for spending that much?

Of course I'm not going to tell her how much it was, but she'll know... and I don't want her to be annoyed whilst we're on our holiday. I have a feeling she will be both annoyed and ecstatic, but it's something I've been planning for 2 years now and I've been saving up every month from my job without telling her and now I have enough.
What do you think?
Thanks for all the help.
Note: Throwaway to keep the surprise under wraps in case she stumbles upon Reddit and then this...

Give me a shortened version of the text
<bot>: Together 7 years, considering proposing on our holiday next week, wanting to buy a $10k ring for her that I've seen, is this a good idea? Thanks