Care & Maintenance
Caring for Opal Jewelry: What's Actually Different
Opal is genuinely more delicate than a diamond, and the care routine reflects that. Here's what to actually do — and avoid.
Why opal needs a different approach than diamond
Opal scores just 5.5-6.5 on the Mohs hardness scale, compared to a diamond's 10 — it's genuinely more prone to scratching and chipping. Opal also contains water within its structure (typically 3-21%), which makes it sensitive to extreme dryness or temperature swings in a way diamonds and most other gemstones simply aren't.
Cleaning: skip the ultrasonic and steam cleaners
The heat and vibration from ultrasonic and steam cleaning — both commonly used for diamonds — can crack an opal or cause it to dry out. Clean it instead with a soft cloth and mild soapy water, wiped gently, then dried immediately. No soaking.
Avoid harsh chemicals entirely
Perfume, hairspray, lotion, and household cleaners can all dull an opal's surface or affect its color play over time. The practical habit: put opal jewelry on last, after getting ready, and take it off first before applying any of these products.
Protect it from impact and extreme temperature
A protective setting — bezel or half-bezel rather than fully exposed prongs — genuinely reduces chipping risk for daily wear. Also avoid leaving opal jewelry in a hot car or near direct heat; rapid temperature or humidity changes are one of the more common causes of a phenomenon called 'crazing,' fine surface cracks that don't fully reverse.
Storage matters more than with most stones
Store opal jewelry separately from harder gemstones, which can scratch it in a jewelry box, and avoid extremely dry storage conditions — a small dish of water nearby, or simply normal household humidity, helps prevent the stone from drying out over long periods of non-wear.
Is opal still worth choosing despite the extra care?
For the right person, yes — no other gemstone has opal's exact play of color, and with reasonable care (avoiding the mistakes above, not obsessive handling), an opal piece holds up perfectly well for regular wear. It simply asks for a bit more attention than a diamond does.