UltraOkay

Is it OK for your ultrasonic cleaner?

Emerald

Yes
Check first
No

Avoid – nearly all emeralds have fractures filled with oil or resin.

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 estimates that at least 90 percent of all emeralds are fracture-filled. Ultrasound can weaken stones that are already fractured and dissolve the filler.

Do this instead

  • Lukewarm soapy water and a soft brush
  • No heat

Sources

  1. GIA – emerald care
  2. GIA – gemstones and ultrasonic cleaners
  3. Stuller – To steam or not to steam

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

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