The waves movements quicly make it illusive to get it back.
By way of vengeance, I picked a pebble on the beach and made her a ring out of it.
Here are the steps of the design :
The pebble (doesn't wonder what will happen to him)
The same one, sliced
To avoid to much sanding, after marking the inside diameter of the ring, more cutting
Here comes the hollowing out
The inside is sanded, time to even up the outside and to polish it all
The ring finished, all angles polished to avoid sharp edges, only the varnish to get done
And my wife's hand has a new ornament, phew, the worst has been avoided :-)