The Ultrasonic Jewellery Guide
Can your jewellery go in an ultrasonic cleaner?
By SONIQ LABS · Updated 8 November 2026
“Gold” or “diamond” is only part of the answer. The stone, its treatment, the setting and the finish all affect the cleaning method.
Use this three-step check
- Identify the whole piece. Look at its receipt, care card or gemstone report. Include small side stones and any coatings or treatments.
- Check its condition. If a stone moves, a claw looks bent, or the piece has damage, stop and arrange an inspection. Looking at it yourself cannot certify a secure setting.
- Follow the maker’s care advice. If ultrasonic cleaning is not clearly allowed, ask the jeweller about that exact piece before using a machine.
When to leave the machine off
GIA advises against ultrasonic cleaning for organic gems such as pearls and amber, and for various sensitive or treated stones. Fracture-filled gems and some coatings or impregnations can be damaged. Vibration can also loosen stones. Its guidance is linked below.
Do not guess from colour or appearance. Take the piece and any paperwork to a jeweller and ask for a suitable cleaning method.
Ask a more useful question
| What you own | What to establish first |
|---|---|
| A diamond engagement ring | Are there treatments, inclusions or setting concerns that change its care? What about the side stones? |
| A gold or platinum piece | Is it solid metal, plated, set with stones, glued, hollow or finished in a particular way? |
| A silver piece | Is the issue dirt or tarnish? Is there a deliberately darkened finish that should be preserved? |
| Plated or coated jewellery | Does the maker explicitly allow ultrasonic cleaning for that finish and its present condition? |
| An antique or repaired piece | Has a jeweller assessed the construction, repairs and settings? |
A short cycle is not a safety setting
Do not use a shorter cycle as a workaround for uncertain suitability. Resolve the material and condition question first; then follow the permitted cleaning instructions.
Questions to take to your jeweller
- What are all the stones in this piece, and are any treated?
- Are the settings and any repairs suitable for ultrasonic cleaning?
- Does the finish need special care?
- Which cleaning liquid and method should I use at home?
- When should the settings next be inspected?
Once you have that answer, compare the practical options in our cleaning-method guide.
Source and limits
GIA: Gems and Ultrasonic Cleaners. This page explains a decision process; it does not diagnose your jewellery or replace a jeweller’s inspection. Written by SONIQ LABS; no individual expert review is claimed.