Something that helped me recently was to find out that if you LOSE a stone, it means it didn’t want you. JOKING, it just means you weren’t compatible at that moment.
It happens sometimes with really powerful stones or big stones. Those always seem to have legs if you try to force the relationship.
I had a moldavite necklace that I could never keep track of.
On the other hand, I have an amethyst crystal that always seems to pop back into my life right when I need it.
If you pay attention, there’ll be some crystals (or ideas of, or pictures of, or references to certain crystals) that always come back to you.
Those are your friends.