Opal Care & Cleaning
- Enchanting World Of Opals

- Dec 11, 2025
- 3 min read
Opal Care & Cleaning How to Keep Your Stone Beautiful for Life
Introduction
Opals are some of the most beautiful gemstones, but they require special care to maintain their brilliance and longevity. Many UK buyers, jewellery makers, and collectors ask how to clean and store opals safely.
At Cornwall Gem, we specialise in natural Australian opals and provide guidance to help customers keep their stones vibrant and undamaged for years to come. This guide explains everything you need to know about opal care, debunks common myths, and shares practical cleaning and storage tips.
1. Debunking the “Opals Hate Water” Myth
A common misconception is that opals must be stored in water or that water will damage them. Here’s the truth:
Natural opals contain a small amount of water (typically 3–10%)
Storing in water is not necessary
Sudden temperature changes, direct sunlight, or chemicals are far more damaging than water
Cornwall Gem advises buyers to focus on stable, dry storage rather than soaking stones.
2. Cleaning Your Opal Safely
Proper cleaning preserves colour, pattern, and structure.
Do’s:
Use a soft, lint-free cloth to gently wipe the stone
For stubborn dirt, use warm, mild soapy water and a soft brush
Rinse quickly with clean water and pat dry
Don’ts:
Avoid ultrasonic cleaners
Avoid harsh chemicals like bleach or ammonia
Never soak doublets or triplets for long periods (water can weaken glue layers)
Do not use abrasive materials that scratch the surface
Cornwall Gem provides guidance for every type of opal, including boulder, black, white, and rough stones.
3. Storing Opals Properly
How you store opals affects their longevity:
Separate storage: Keep stones away from harder gemstones to prevent scratches
Soft pouch or lined box: Protects against impact and dust
Avoid extreme heat or direct sunlight: Prevents cracking or colour fading
Optional moisture balance: For very dry climates, a slightly humid environment can help reduce tiny fissures, but water storage is unnecessary
4. Handling Tips for Jewellery Makers
Remove opal rings when doing heavy work, gardening, or cleaning
Be mindful of prongs and settings; opals are softer than diamonds, sapphires, or rubies
Check doublets and triplets periodically to ensure layers are secure
Cornwall Gem stones are shipped with handling and care instructions so buyers can protect their investment.
5. Caring for Different Opal Types
Different opals have slightly different needs:
Solid Opals
Can be worn regularly if treated carefully
Polished surface can be gently cleaned
Boulder Opals
Ironstone backing adds strength
Resistant to breakage; still handle with care
Doublets and Triplets
Avoid soaking or ultrasonic cleaning
Use only soft cloth and mild soapy water
Rough Opals
Often stored until cut and polished
Keep away from dust and moisture
6. Avoiding Common Mistakes
❌ Leaving opals in direct sunlight or on radiators❌ Using harsh household cleaners❌ Wearing rings with thin or delicate stones during heavy work❌ Failing to store stones separately
Following proper care ensures your opal remains as beautiful as the day you bought it.
7. Professional Maintenance
For high-value or antique opals:
A jeweller can polish scratches or repair minor cracks
Doublets and triplets may occasionally need reglueing
Expert advice preserves longevity and value
Cornwall Gem recommends professional maintenance for high-end pieces to maximise lifespan.
8. Shipping and Handling Considerations
If you purchase opals online:
Ensure stones are packaged safely
Bubble wrap, cushioned boxes, and sturdy outer packaging prevent damage
Always check the parcel on arrival for any damage
At Cornwall Gem, every shipment is securely packaged to protect opals during transit across the UK or internationally.
9. Summary of Key Care Tips
Wipe with soft cloth; avoid harsh chemicals
Store separately in padded boxes
Keep away from extreme heat, sunlight, or sudden temperature changes
Handle with care, especially rings and earrings
Doublets/triplets require extra caution
Following these simple steps will keep your opal vibrant for decades.
10. Final Thoughts
Opals are treasured for their unique beauty and play-of-colour, but they are also delicate gemstones. Proper care ensures your stones remain brilliant and safe.
By following these tips and buying from a trusted source like Cornwall Gem, UK jewellery makers, collectors, and enthusiasts can enjoy the full splendour of natural Australian opals for years.
With ethical sourcing, detailed guidance, and fast UK delivery, Cornwall Gem is your trusted partner in purchasing, storing, and maintaining beautiful opals.

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