If you REALLY want to get her a significant gift, why not something along the lines of an origami owl "locket" with your colors/stones and symbol? I have a friend who sales origami owl and they are really cute.
http://www.origamiowl.com/how-to-build/
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“All his life he tried to be a good person. Many times, however, he failed.
For after all, he was only human. He wasn't a dog.”
― Charles M. Schultz
Warning: The above post may be dripping in sarcasm and full of smartassedness.