I'v found gold wedding band on North Bull Island parking.
It's quite big and has a date engraved.
Exact location:
https://www.google.com/maps/place/53°21'10.0"N+6°09'56.8"W/@53.3527858,-6.1663349,169m/data=!3m2!1e3!4b1!4m6!3m5!1s0x0:0x0!7e2!8m2!3d53.3527846!4d-6.1657728
Approximate area where the item was last seen