The Cleaners I Tested
The [Magnasonic Professional Ultrasonic Jewelry Cleaner](https://www.amazon.com/s?k=Magnasonic+Professional+Ultrasonic+Jewelry+Cleaner&tag=thetestedhub-20) is the all-around winner. The 42 kHz tank lifted ten years of grime off my watch band in one cycle.
Check price on Amazon →I dropped rings, watches, and earrings into five sonic jewellery cleaners to find which ones actually lift grime without harming stones.
How we picked
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| The Cleaners I Tested | Check price |
Our picks up close
The Cleaners I Tested
The [Magnasonic Professional Ultrasonic Jewelry Cleaner](https://www.amazon.com/s?k=Magnasonic+Professional+Ultrasonic+Jewelry+Cleaner&tag=thetestedhub-20) is the all-around winner. The 42 kHz tank lifted ten years of grime off my watch band in one cycle.
Quick answers
Diamonds, sapphires, and rubies are fine. Avoid sonic cleaning for emeralds, opals, pearls, and turquoise because vibrations can crack them or strip protective oils.
A few drops of mild dish soap in warm water work for most pieces. Commercial jewellery solutions add surfactants that help with heavily tarnished metal but skip ammonia-based formulas for plated jewellery.
