Only you can decide what is the right thing to do...sell or find the owner....no one can make that decision for you.
As for the person losing that ring....why should someone NOT wear their jewelry? It was bought for them or by them to wear. Me, personally, I could care less about wearing it. All my good stuff is at home and I don't wear, mainly for fear of losing it....I will pass down to each of my first grandchildren from each of my kids, then they can loose it and ya'll's grandkids will find them...never ending circle! LOL
I don't detect to get rich, to put food on the table, to buy my kids clothes...I do it, cause I enjoy the heck out of it, and it's great exercise (better than going to the gym and doing crunches or weights!!), it gets me outdoors more often and enjoying the sunshine! And it's another way for the family to do outdoor things together and making new friends!
I have only found one item, which I felt in my heart to return...a high school ring and the young lady who lost it, was still in high school at the time (infact, she just graduated this month!). I wasn't offered a reward, nor did I ask for money for finding it. I just happened to be at the right place at the right time and found it for her.
I guess it's just the way my Daddy raised me, the path he helped lay out for me to travel, to become the person I am today and the same way I have raised my children.
Even with hunting at Pipsico, yes, I'll admit, I would have loved to have kept some finds from that hunt and any future hunts that go on there, but at the same time, I was so excited to find my FIRST COLONIAL BUTTON with writing on it!!! That's not as exciting to you, the $5500 ring finder...but it's exciting to me. Just being a part of finding history...that is what is exciting to me!!!!!
Just like when I was a kid, my grandfather took me to Central Park (we loved going to the zoo). I was about 7/8 yrs old and I found a man's wallet on the pathway. Grandpa and I went to the police station and turned it in. I guess Grandpa left his name and such, as some days later, just before my parents and I were heading back to North Carolina, where we lived at the time, a man came to Grandpa's door. Grandpa and him were talking for a bit and then Grandpa called me over. The man thank'd me for being an honest young lady and gave me $20 for finding his wallet. My father would not let me take the money, but Grandpa talked to my father about it and the man insisted. So, I got to keep it. I took my parents, my grandparents, and my 4 siblings and we went to the ice cream parlor where they made HOMEMADE ice cream and we had a feast!!! I couldn't tell you how much money was in that wallet, but it was full! These impressions are lasting in my mind and I understand NOW where my father was coming from by him not wanting me to keep the money...but that ice cream sure was good!!!!!!!!
To say people are stupid for wearing jewelry to the beach...well, I wouldn't call them stupid....but maybe, irresponsible for their cherished items or just not thinking clearly. What if you found that ring at a local park, let's say, where a wedding or family reunion took place...would you consider them "stupid" for wearing their ring there?
You do what you feel in your heart is the right thing to do.....only you can make that decision, not anyone on this forum. And I try my very best to set the right examples for my children as my father did for me.
I hunt our local beaches, and haven't found anything of what you or others have found, but I am just as happy at finding more quarters and nickels than my hubby....

.....and mostly costume jewelry....oh, did find a man's watch...doesn't work....but still sits in the box with all my other finds....costume jewelry or not!
Now, hubby is out to find that treasure of gold and such....and making a buck (even if he tells you he's not..I live with him...I hear what he is saying LOL)....our views of metal detecting are way different on why we do it and what we expect to find, etc.
But what would I do in a situation like yours....hmmmm.....the same thing I did with the high school ring...try my best to find the owner...and if no owner, hold on to it and leave it to my kids when I die and they can sell it
But anyways, great find....I know you will do what YOU THINK is the right thing to do and not what others think you should do.....
HH,
Annmarie