Girls, How would you react to this gift?

It's my friend's birthday and I have bought her a gift. I have put it together myself from components. I have feelings for my friend and have done from the moment I met her, but she only sees me as a friend, even though I'm sure attraction there initially. I have never admitted my feelings to her, but I think I have said enough that she can put it together. We can be pretty intimate in how we talk and have supported each other through a lot this past year. Even though the relationship isn't what I would like, I do like what we have, for now at least. We have briefly discussed our relationship a few times in the past and the conclusion was it can't be any more than it is because of a few factors like location, conflicting life goals, etc.

Something she says a lot, which I don't agree with at all, is that she feels she is not enough for anyone to take her as a partner. I try to tell her she is wrong and any man would be lucky to have the opportunity to call her his partner, but she doesn't hear me.

As a gift, I have bought a glass vase, filled it with white and black pebbles and some fairy lights, and I am going to give her a bouquet of her favourite flowers to put in the vase too. Aesthetically, I know she will like it.
Now the bit I'm not sure about whether I should follow through; I am going to write on the black stones, each positive quality I see in her which does make her enough. So when she is feeling down, she can pick a stone and know someone sees that quality in her. Qualities such as Beautiful, Kind, Smart, Caring, Charming, Funny, etc.

What would your reaction be if you received this gift as a woman, from me your male friend?
Would you think I have crossed a boundary and I'm being creepy, or would you think it's sweet?
I'm not trying to get her to change her stance on what our relationship is, I just want her to be happier in life and I thought knowing someone can see these qualities in her would give her hope that the man of her dreams will too.

Girls, How would you react to this gift?
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