It is nice to find a ring. It proves you are searching where people are losing jewelry. So keep it up! Gold is going to be there soon.
But you don't have a $5.00 ring. You have a used $5.00 ring. lol
GL HH BH
The Fleur de Lys (flower of Lys) is an old French symbol. It stands for the Virgin Mary, being a very stylized capital letter M. Thus it is Her monogram.