I know, you’d think not, right?  Now, I’m not recommending this,  I’m just telling a story from my idiotically young adulthood.  I’d never do this now.
With my first ever set of pierced earrings, I was scared about getting infections, so I’d nightly squirt peroxide around the hole.  When I was finally able to take the earrings out, I left them overnight in isopropyl alcohol.  I knew nothing about pearl care and fragility.  It’s a miracle I guess, but they stayed fine!  I routinely cleaned them in alcohol.  Maybe they held up because they were very good pearls?   A gift from my best friend and her Mom, in 1972,  about 4.5mm?  I asked her Mom, “How do you take care of pearls?”  She said they’re no special bother if they’re really good, just rinse them off and dry them.  She was a dear.  
 I almost had a stroke when my sister told me  “you know, you’re only supposed to clean them with gentle soap, and rinse them in filtered water...”. 
( I had them for about 7yrs before I got my ears pierced, and wore them every day for 10 years.  They were still beautiful when I lost them rafting in the New River Gorge.  We were warned to take all jewelry off, wear no contacts, no glasses.  So, I did take my wedding rings off and put them in the car, but forgot my earrings.  When I remembered them we were already on the water,  and approaching the first rapid.  The guide said something like I hope you’re not in love with those earrings...
I had really tight cutoff jean shorts on, so  I tucked them in the tiny front pocket.  End of rafting trip - they were gone,  ripped right out of my pocket.  Devastating.)