Rey trying to think of how she’s gonna present it to him, like,

 “Finn, no big deal but I found this rock and it was so beautiful and it gave me a warm feeling that made me think of you, so… too strong.  That’s way too strong.  
Um…  Finn, this stone symbolizes constancy through adversity and love in spite of… Still too strong, ohhhh why is this so HARD…”

In the end she flings the gemstone into his lap.  

“Got you a rock.”  She says.

Finn LOVES it.