Unsure whether one should give a ring to one's friend or one's daughter

I got a best friend since school years till now who has been much help to me when I am in trouble. She doesn't need anything in return but I feel that I would feel much better giving her something that is dear to me. I got this diamond ring that I love and was thinking of giving it to her as a remembrance of our friendship. I know she doesn't need it but in the same time my heart is like telling me that maybe it would be better to keep the ring and give it to my daughter when she grows up. I don't know whether its the shaitaan telling me not to. What should I do? I love my friend and I love my daughter. To whom should I give the ring?