Malcolm Jewelers Maintenance Recommendations

Gemstones Cleaning Methods

Type of stone
Ultrasonic Cleaner
Other method(s) of cleaning
Diamond
Yes, unless fracture-filled*
Ammonia-based cleaners and rubbing alcohol are safe. Use a soft toothbrush to clean the diamond. Dry with a soft, clean cloth.
Emerald
No
Use a soft toothbrush and warm, soapy water. Dry with a soft, clean cloth.
Garnet
Yes, unless fracture-filled*
Use a soft toothbrush and warm, soapy water or rubbing alcohol. Dry with a soft, clean cloth.
Opal
No
Use a dry or damp cloth.
Peridot
No
Use a soft toothbrush and warm soapy water. Dry with a soft, clean cloth.
Ruby
Yes
Use a soft toothbrush with warm, soapy water, ammonia-based cleaners or rubbing alcohol. Dry with a soft, clean cloth.
Sapphire
Yes
Use a soft toothbrush with warm, soapy water, ammonia-based cleaners or rubbing alcohol. Dry with a soft, clean cloth.
Tanzanite
No
Use warm, soapy water. Dry with a soft, clean cloth.
Topaz
No
Use a soft toothbrush and warm, soapy water. Dry with a soft, clean cloth.
Tourmaline
No
Use a soft toothbrush and warm, soapy water or rubbing alcohol. Dry with a soft, clean cloth.
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Gemstone Cleaning Methods