Don’t worry. If you ever run into a problem where you drop your ring into your sink, you can easily retreive your ring. Over the years, our mechanics have retrieved many rings for our customers. Some were presents, some were wedding rings, some were engagement rings. It is pretty obvious, anyone would be upset if they dropped their ring in the sink. But, we love to see the smile coming back on our customers faces when we successfully retrieve their ring for them.
If you ever run into a similar situation, where your ring falls or slips down the sink drain, first thing you must do is to stop running the sink water. If you are already not running it, then make sure no one runs the water till you get your ring back. It would be a good idea to not run any water in the house, just in case your ring makes it to the sewer trap and is washed away from there. Majority of the times, that is more than 98% of the time, the ring does not make it past the sink trap. It simple sits at the bottom of the trap. If you have a PVC trap under your sink, simply unscrew the trap and flip it, your ring should come out smoothly.
If you have a metal trap, then more than likely, you will have a plug at the bottom of the trap. Grab a channel lock or wrench and open up the plug. Some water will come out, so keep a pot underneath the trap. Your ring should come out with the water, but in case it does not, run the water in the sink while the plug is open. This should push the ring out if it is sitting on the side of a trap. You can also put some gloves on and feel the inside of the trap to make sure the ring is not in there.

If the above two tricks don’t work, head over to your main sewer trap and make sure the ring is not there. If none of the above work, call a plumber or a sewer and drain mechanic to try to retrieve the ring from your stack line.

Hopefully, no one has to go through such trouble. Good Luck