UltraOkay

Is it OK for your ultrasonic cleaner?

Bone, horn and ivory

Yes
Check first
No

Avoid – organic materials that GIA rules out for ultrasonic cleaning.

Updated from your answers.

With these answers we do not recommend the ultrasonic cleaner, so there is no how-to.

Pick your cleaner to see if it fits, which setting to use and what its manual says.

Why

GIA counts ivory and tortoiseshell among the organic materials that should never go in an ultrasonic cleaner. Bone and horn swell and crack from water.

Do this instead

  • Wipe with a slightly damp cloth

Sources

  1. GIA – gemstones and ultrasonic cleaners

Cleaners that fit this

Ranked by fit, never by commission.

How we rank: models made for this kind of item first, then how easy the model is to buy where you are, then how much of its spec is confirmed in a source.

We may earn a commission when you buy through these links. It never changes an answer. How this works

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    Good to have for this

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    Clean it safely another way The safe way while you check

    We may earn a commission when you buy through these links. It never changes an answer. How this works

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