I'd never heard of this so had a look - good reviews. My rings get cleaned when I wash my hands, the SAGE nag bags would be very pleased with me because I have a thing about clean hands & I could put washing them down as a hobby. If anything does need extra cleaning it gets put into a tea strainer, squished with a tiny amount of my Moo Hair shampoo, which is very gentle, & twirled around with a soft toothbrush; both utensils are kept for this activity alone! All the pearls I've got seem as good as when bought/given & I don't like opals or emeralds, or have any other fragile stones, so don't have to be precious with the rest of my stuff.Does anyone use a jewellry cleaning pen? My jeweller friend gave me a few along with some cloths and dips. Nothing beats a professional cleaning but I've been using the pen (Connoisseurs Diamond Dazzle Stik) to keep a sparkle on my engagement ring as I've not been out since lockdown. It works really well.