A cautious approach to caring for coloured gemstones, where hardness, porosity, treatments and heat sensitivity can vary significantly.
There is no single safe cleaning method for every gemstone Gemstones differ greatly. Some tolerate gentle washing well; others can be damaged by heat, prolonged soaking, chemicals, ultrasonic cleaning, steam, sudden temperature changes or even excessive dryness. |
Safer General Habits
- Keep gemstone jewellery away from perfume, hairspray, creams, cleaning chemicals and chlorine.
- Avoid hard knocks and abrasive contact.
- Store stone-set pieces separately so harder stones do not scratch softer ones.
- Avoid prolonged strong sunlight or heat for sensitive stones.
- If the identity or treatment of a stone is unknown, use the most cautious care approach.
Gemstones That Need Particular Caution
Pearls, opals, turquoise, coral and amber are examples of materials that need gentle handling. Emeralds may contain treatments or inclusions that make aggressive cleaning unsuitable. Other gemstones can also have treatments that affect care.
Cleaning Coloured Stones
A soft, slightly damp cloth is often a safer starting point for an unknown or delicate gemstone. Mild soapy water can be suitable for some robust stones, but only when you know the stone, treatment and setting can tolerate it.
Avoid DIY assumptions Do not use bleach, acids, toothpaste, abrasive powders, boiling water or home chemical mixtures on gemstone jewellery. Do not place an unknown gemstone in an ultrasonic or steam cleaner. |
Frequently Asked Questions
Can every gemstone go in an ultrasonic cleaner?
No. Some gemstones, treatments and settings can be damaged. The full item should be assessed before ultrasonic cleaning.
Can sunlight fade gemstones?
Some gemstones and organic materials can change colour with prolonged strong light or heat. When in doubt, store jewellery away from direct sunlight.
What if I do not know whether my stone is natural, treated or synthetic?
Avoid aggressive cleaning and have the item assessed before using chemicals, heat, steam or ultrasonic cleaning.
Related Gold Factory Guides & Services
- Astrology Stones
- Birthstones
- Gemstone Guide
- Pearl Care
- Professional Jewellery Cleaning
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