As an Air Force electronics tech, I was required to remove all jewelry before working on radio gear. I would normally drop them in my shirt pocket.
One night I was awakened from my bunk by the Army dude on radio watch, with the news that one of the radios was acting up.
A quick inspection verified it needed some tweaking, so I pulled off my watch and wedding ring. As I was only wearing an undershirt, I put them on top of the rack the gear was mounted in.
After finishing the job, I paused to shoot the breeze with the Army dude for a bit, before putting my test equipment away and grabbing my jewelry. During that chat, an attack began which culminated in our 16-man site being overrun by 300 NVA and VC troops.
It was part of the 1972 Easter Offensive, and we were on top of Nui Ba Den (aka Black Virgin Mountain).
When it became obvious that we had lost control of the position, the Army dude followed standing orders...and melted all of the radio gear with incendiary grenades, to prevent secret information (the operating frequencies) from falling to the enemy.
My very small diamond, and the remains of a durn good self-winding Seiko, are still there.
CM