The listing, Rhinestone Pin with 18 rhinestones & 1 is an Auroa Borealis Crystal has ended.
I call it a Mother's Pin with 18 rhinestones
and 1 of them is an Auroa Borealis Crystal
Of course you could just use it as a brooch because it's pretty
This is probably vintage, BRIGHT gold color (or perhaps gold filled). It belonged to a lady's 85 year old mother and apparently the daugther didn't care for jewelry....
18 stones.....do you have 18 members in your immediate family??
you and hubby, 6 kids, their spouses, your grandkids, both grandparents, etc. would make 18 !