Cleaning Gemstones

Natural and synthetic gemstones need to be cleaned and stored properly . Here are some tips on how to take care of your stones to extend their life and luster.

Clean stones with warm, soapy water.

Dry stones thoroughly with a soft towel.

Some stones can be safely cleaned in an ultrasonic cleaner and some cannot such as amber, coral, lapis, opal, pearl, and turquoise.(see below)

Rub gems with a smooth soft cloth to remove fingerprints and to help keep them shiny.

Store stones away from intense heat and light.

Opals and pearls should be cleaned by just using a soft cloth; immersing in water is not a good idea.

Should your stones be steam or ultrasonic cleaned? See list below.


Agate - Okay to for ultrasonic cleaner. No steam cleaning.

Amber-Never steam nor ultrasonic

Amethyst-Okay to for ultrasonic cleaner. No steam cleaning.

Aquamarine- Okay for ultrasonic and steam cleaning.

Citrine- Okay to for ultrasonic cleaner. No steam cleaning.

Coral- Never steam nor ultrasonic

Garnet - Okay to for ultrasonic cleaner. No steam cleaning.

Iolite - Never steam nor ultrasonic

Jasper - Okay to for ultrasonic cleaner. No steam cleaning.

Lapis Lazuli- Never steam nor ultrasonic

Malachite- Never steam nor ultrasonic

Opal - Never steam nor ultrasonic

Pearls - Never steam nor ultrasonic

Peridot - Never steam nor ultrasonic

Ruby - Okay for ultrasonic and steam cleaning.

Sapphire - Okay for ultrasonic and steam cleaning.

Spinel - Okay for ultrasonic and steam cleaning.

Topaz - Never steam nor ultrasonic

Tourmaline - Never steam nor ultrasonic

Turquoise - Never steam nor ultrasonic

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