Tried this on some rings I had, it did nothing.
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Ultrasonic Jewelry Cleaner -Silver Cleaner for Jewelry Rings with Watch Holder,Cleaning Basket,304 SUS Tank for Eyeglasses Watches Coins Tools Razors Earrings Necklaces Dentures 20 Ounces
Price: $40.99
Description
★To clean: \r\n\r\n Jewelries: necklace, rings, earrings, bracelets etc. \r\n Glasses and timepieces: eyeglasses, watch chains, waterproof watches etc. \r\n Commodities: shaver heads, razor blades, dentures, combs, toothbrushes etc. \r\n Metal articles/Dishware: watch parts, coins, spoons, forks etc. \r\n Stationery: pen-heads, printer-heads, inject cartridges, seals etc. \r\n\r\n \r\n ★Principle of Ultrasonic Cleaner: \r\n\r\n Ultrasonic cleaning is based on the cavitation effect caused by high frequency Ultrasonic wave vibration signal in the fluid. \r\n Microscopic bubbles are formed,and they implode violently causing the cavitation which create an intense scrubbing action on the surface of the item being cleaned.\r\n The bubbles are small enough to penetrate microscopic crevices,cleaner them thoroughly and consistently.Ultrasonic cleaning is extremely effective at removing dirt and grime which would normally require tedious manual cleaning by hand.\r\n It has been used to clean a wide variety of instruments and mechanical parts such as carburetors,returning them to almost ‘like new’ condition without damage to delicate parts.
